K K K K K K K K K K K K K K K K K K K K K K K K K K K K

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

O
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

T21 523
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Question
1
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Copyright reserved
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

the plant.
pressure.

hormones,
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

The time given at the

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(a) Name the following:

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

head
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

of
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
The intended marks for questions or parts
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
of

through a living membrane using energy.

of
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
(Two hours)
BIOLOGY

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
SCIENCE Paper -3

SECTION I(40 Marks)

(i) The chemical used to test the prescnce starch.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
Atempt all questions from this Section.

This paper consists of 12 prínted pages.

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

(ii) The process by which ions pass from their lower to higher
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
This time is to be spent in reading the Question Paper.
You will not be allowed to writeduring the first 15 minutes.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Altempt all questions from Section I and any four questions from Section

(ifi) The process by whích the blood flows through the glomerulus under
Answers to this Paper must be written on the paper provided separately.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

(iv) The tissue that transports manufactured food from thc lcaves to all parts
I.

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
questions are given in brackets [ ].

high
concentration

(v) The hormones that stimulate other endocrine glands to produce their specific
of
this Paper is the time allowed for writing the answers.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

Turn Over
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
[5]

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
 K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

T21 523
(d)
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(c)
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

i)
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
(b)

heart.
(v)
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
(i)

(i)
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

called (iii)
The

ColumnA
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

(iv) The

(iv) Cochlea
(ii) Meiosis
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
underlined:

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

protects the heart.

K K K K K K K K K K K K K K K K K K K K K K K K K K K K

process
The neuron

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

appropriate words:
point of

(v) AB blood group

(ii) Pulmonary vein
Adrenal medulla
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
System is motor

(v)
Correct and rewrite

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
(ii) The loss of plant sap
The mineral clement

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
the

the lower two are called (i)

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
neuron.

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(iv)
that conveys

in chloroplast
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

2
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
by
statements

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

8
6.

7.
by

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

5.
3.

4.
and REWRITE the correct matching pairs:

2.
1.
which

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
through a a cut surface
impulse fromthe

Column
of

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

Sperm
B
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
a

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

Adrenaline
contact between the terminal branches

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
requiredfor the clotting of blood

of

Photo receptors
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

Audio receptors
Universal donor
with the dendrites of anothei ieurOn is known as receptor.

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
The human heart has four charnbers. The upper two are called (i)

Oxygenated blood
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Universal recipient

Deoxygenated blood
plant is known

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
the axon
as

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
of
changing the biological term

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
a
is Magnesium.

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
phosphate to ADP in the presence of light is known as polymerization.

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
that

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
guttation.
Is

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
receptor to the central nervous

neuron

Complete the following paragraph by tiling in the blanks () to (v) with

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
ATP is formed by the addition of

and
The heart is covered by a membrane
fluid absorbs physical shocks and
supply oxygenated blood to the walls of the

Match the items given in Column A with the most appropriate ones in Column B
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
(5)

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
[5]

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
 K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

T21 523
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
(e)

(V)
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

(ii)
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

C.
B.
A.
C.

D.
B.
A.
D.
C.
B.
D.
C.
B.
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

A
D,
C.
B.
A.
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

44
46
A. 23

22

D. Grana
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
Rate
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
Guttation
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
Exosmosis

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
Photosynthésis

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

None of the above

plants, takes place in the:

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

of the chloroplast
Nucleus of palisade cells
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Stroma of the chloroplast

of uptake of watcr

Cytoplasm of palisade cells

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

Hypo secretion of thyroxine

Hyper secretion of thyroxine
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(iv) Cretinism and Myxedema are due to:

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
(i) Ganong's Potometer is used to study:

K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Hypo secretion of growth hormone

Hyper secretion of growth hormone
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Wall pressure exceeds turgor pressure
Turgor pressure cxcceds wall pressure

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
A. Turgor pressure cqualizes wall pressure

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
(iii) The number of chromosomes in a human skin cell are:

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Choose the correct answer from the four options given below:

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
plant ccll may burst when placed in a hypotonic solution because:

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Light dependent phase of Photosynthesis occurring in the green leaves of

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

Turn Over
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
(S]

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
 K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

(h)
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

T21 523
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

(i)

(V)
(i)
K K K K K K K K K K K K K K K K K K K K K K K K K () K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(ii)
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
() ldentify the

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(iv) Thylakoids

process in plants:
(iii) Ciliary body
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
ODD

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(ii) Corpus callosum

(i) Lacrimal gland,

Chordae tendineae
remaining three belong:

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
(iv) Conjunctiva, Incus,

(v) Ureter, Pons, Urinary

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Neutrophil, Monocyte,

Sunlight
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

(v) Pulmonary semilunar valve

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
term in each

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

4
Cornea, Iris

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(iii) What is the aim of the experiment?

(g) State the exact location of the following

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
set and

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
bladder, Urethra

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(ii) Define the process mentioned in (i) above.

(iv) Give a well-balanced equation to represent

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

What would happen to the rate of bubbling

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Name the physiological process being studied.

Root pressure, Capillarity, ranspiration pull,

structures:

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Gas
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Thrombocyte, Lymphocyte

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

the process.
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Plasmolvsis

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Water

Funnel
Bubble
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Beaker
Thyroid gland, Adrenal gland, Pituitary gland

Test-tube
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

-Hydrilla plant

bicarbonate is added to the water in the beaker? Explain your answer.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

of the gas if a pinch of sodium

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
The figure given below represents an experimental setup to study a physiological
name the CATEGORY to which the

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
[S]
[5]

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
5]

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
 K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

(b)
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(a)

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R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

()
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

(v)
i)

(ii)
S S S S S S S S S S S

(v)
S S S S S S S S S S S S S S S S S S

(iv)
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
Question 2
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

solution.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

appearånce?
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(i) Why does part

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

1
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

Label the parts 3 and 4.

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(iii) What is the fluid that passes down part 4?

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
2

(iv) The process by which WBCs engulf bacteria.

K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Name the main nitrogenous waste present in

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

it.
SECTION II (40 Marks)

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Give the biological / technical terms for the following:

Study the diagram and answer the questions that follow:

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Attempt any four questions fromthis Section.

Mention the structural and functional units of the kidneys.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

The actions which are involuntarily controlled by the Spinal Cord.

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(ii) The hormone increasing the reabsorption of water by kidney tubules.

The diagram given below shows a longitudinal section of a human kidney.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

Draw a neat diagram of a Malpighian capsule and label any hvo parts.

The sound produced when the atrio-ventricular valves close in the heart.
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

The recovery of protoplasm when a flaccid cell is placed in a hypotonic

have a dotted appearance and part 2 have a striped

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

Turn Over
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
 K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

(a)
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

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()
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

(*)

2.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

1.
(vî)

1.
(vii)

Question 3
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
A

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

insipidus.
Insulin
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

2. Insulin
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
efect

Glucagon
Glucagon
R R R R R R R R R R R R R R R R R R R R R R R R R R
of

the nucleus. R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

(ii) State the main function of:

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
(viii) The complex consisting of

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

What are Islets of Langerhans?

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
The form in which glucose is

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
the eyein whichthe

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
a DNA strand

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
and

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
a

() Where is the Pancreas located in the human body?

stored in the liver.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
lens turns opaque.

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
core

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
of

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
PANCREAS

(iv) Why is insulin not given orally but is injected into the body?
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
histones.

(ii) Name the cells of the Islets of Langerhans of Pancreas that secrete:
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Mention any one difference between Diabetes mellitus and Diabetes

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Study the diagram of Pancreas gíven below and answer the questions that follow:
The compound formed when haemoglobin combines with carbon monoxide.
(ix) The process that leads to the diviSion of cytoplasm following the division of

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
[5]

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
 K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(a)
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

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K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(i)
(b)
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

1.
(i)

Question 4
1.
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

1.
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Myopia
activated:
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

2. Hyperopia
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

In dim light
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

2. In bright light
Near vision?

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
2. Distant vision?
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(iii) Why is oil put on water?

in the shape of the lens.
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

7
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

Water
(ii) What is the shapc of the lens during:

Oil
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(1) Explain the process mentioned in (i) above.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(v) Where is the image formed in a person having:

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
What is meant by power of accommodation of the eye?

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Name the process being studied in the above experiment.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Study the diagram given below and answer the questions that follow:
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
With reference to the functioning of the eyc, answer the questions that follow:

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
(iv) Name the cells of the retina and their respective pigments which get
(ii) Name the two structures in the eye responsible for bringing about the change

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

Turn Over
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
[S]

[S]

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
 K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

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K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(v)
(iv)

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
3.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
1.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
What

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Mention
do

placed in:

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
we

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Windy day?

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Bright sunlight?

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
2. Humid conditions?

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
mentioncd in (ii) above.

S S S S S S S S S S S S S S S S S S S S a S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S Answer the questions that follow:
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
K
S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
observe with regard

8
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

() Mention any two components of a nucleotide.

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
to the level

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
of

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
(b) The diagram given below is double helical structure of

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(ii) Name any two nitrogenous bases of a DNA molecule.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
DNA.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

(v) When does the replication of DNA take place in a cell cycle?
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

(iii) Mention the units of heredity which are located in Chromosomes:

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

(iv) What is the type of bond between the complementary nitrogenous bases?
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
water when this setup is

any thrcc adaptations found in plants to overcome the process

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
 K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

T21 523
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

(ii)
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

1.
1,

1,

parts.
Question S

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
(a) (i) Draw

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Growth
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
How many

Mitosis?
animall cell

2. Meiosis?

(b) The diagram given

2. Formation
of
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

(iv) Name the type

a neat,

Chromatid
(iii) With reference
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

2. Centromere
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

to
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

shoot

(v) What are Homologous

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
labelled

of pollen
havingfour

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Answer the questions that follow:

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

9
()) Name the parts labelled 2 and3.
of cell division
daughter cells are

grains
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

chromosomes?
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
formed

cell division explain

K K K K K K K K K K K K K K K K K K K K K K K K K K K K

below is the external view

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
at

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

(ii) State the main functions of the part numbered

K K K K K K K K K K K K K K K K K K K K K K K K K K K K

1.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
the end

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

2
that occurs during:

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
of:
chromosones and label any

(iv) What are the structural and functional units of the brain?
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
diagram to slhow the Metaphase

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(iii) How is the brain protected in the human body? Mention any
the following terms:

R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K of the human brain.
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
two parts.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

twostructures.
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

(v) Draw a neat diagram of one such unit as mentioned in (iv) and label anv two
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Turn Over
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
stage of Mitosis in an

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
[S]

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
[5]

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
 K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(b)
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
(a)

T21 523
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

()
(v)
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(v)
(i)

(ii)
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
Question

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
6

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

(iv) Urethra
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Study the same and
The diagram below

(iii) Eustachian tube

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

Vitreous humour
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

What is Guttation?
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(i) Semicircular canals

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

Lymphocytes of blood
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
a

R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K ldentify the above structure.
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
K
R
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Where are they present in a leaf?

Name the parts labelled A and B.

(iv) Mention the plastids present in A.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

10
What is the pigment present in it?
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Name the pores that carry out this process.

State the main function of each of the following:

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
answer the questions that follow:

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
(iii) What is the function of the parts labelled A and B?
A

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
B
represents structure found in a leaf.

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
(S]

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
[S]

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
 K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

T21 523
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
(a)
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(i)
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

After
Question 7

24
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
put them in

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
3

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
hours,

(v) How does a cell

SIZE INCREASED
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
in

(iv) What is osmosis?

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

>1
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
the first

K K K K K K K K K K K K K K K K K K K K K K K K K K K K

Mention any two features.

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Explain the reason briefly.

The following diagram shows

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

walland a cell
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

11
(ii) How are the root hairs adapted
change in the size of the potato cube.

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

SIZE DECREASED
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

(ii) In beaker 3 the size of the potato cube remains same.

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
A candidate in order to study the process of osmosis has taken

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
different beakers containing 3 different solutions.

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Give the technical terms of the solutions used in the beakers

theresult of the same experiment:
3

1
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R and 2.
R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

membrane differ in their permeability?

SIZB REMAINS SAME

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

for absorption of water from the soil?

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
potato cubes and

beaker the potato cube deereased in size and in the third beaker there was no
beaker the potato cube increased in size, in the second

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Turn Over
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
 K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K (b) K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

()
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
Given

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K

two parts.
5
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

(iv) What is Serum?

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
below is a schematic

LIV

(v) Draw neat diagrams of

E

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

(ii) What is the significance

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
in the human body. Answer the

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Mention any one function.

KIDNE Y
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S

Label the parts numbered 1, 2 and

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
3.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

(iii) What kind of blood do the blood vessels

K K K K K K K K K K K K K K K K K K K K K K K K K K K K

1
2

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
4

K K K K K K K K K K K K K K K K K K K K K K K K K K K K

a cross section of blood

quesuons that follow:

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
representation of the pathway

SMALL INTESTINE

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
of

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R and 2 carry? R R R R R R R R R R R R R R R
of the blood vessel numbered 3?

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
circulation

S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
of

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
blood

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
vessels 4 and 5 and label

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
any

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
[5]

K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R
K K K K K K K K K K K K K K K K K K K K K K K K K K K K
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S