Smt.

Rukmanrani Education Founda

tions
\ WISDOM IDG H INTERNATIONA
NASHIK
L SCHOOL & JR. CO LLE GE

QUESTION PAPER
Aca dem ic Year: 2024-25
Location: SMC/GOC
I I DI No. EXM/DI/03
I Rev:02 I Date:17.07.2023 I Section: ICSE
Released date : 20/1 2/20 24

FIRST PRELIMINARY EX AM INA

TIO N

GRADE: - 10(ICSE)
SUBJECT: - Biology
TIM E: -2 hrs. DA TE: -03 /01 /20 25
MARKS:-80
HOD Sign: ~ Head Sign: __'Ji...,.1/jLa.,.
/ __ ..· _ _ _ _ __
7
General Instructions:

► Answers to this Paper must be written on

the paper prov
ided separately.
► You will not be allowed to write during
the first 15 minutes.
► The time~ e spen t in reading the
question paper.
►The till')e given at the head of this Paper ·
is the time allowed for writing the answ
► Section A is compulsory. Atte mpt any four ers.
questions from Section B.
► The inte nded mar ks for questions or parts ofqu esti pns are
give_n in brackets [ ].
.r SECTION A
(At tem pt all questions from this Sec
tion .) ·
·Question 1: Choose the correct answers to the
questions from ':tht! given opt ion s.
{Do not copy the question, wri te [15J
the correct answers only.)
.
(i) Sunita needs help to know the
common name of the h◊rmone Som
atotropin [1]
a.. Thyroxin b. Insulin c. Cortisol d. Growth
hor mo ne
(ii) A
haemophilic man marries.anormi;!l.h
omozygous we.man. Wh at is the
probaQility tha t the ir son will be hae [1]
mophilic?
a. 100% b. 75% c. 50% d. 0%.
(iii) A plant cell become torgid when plac
ed 111
[1]
a.1 5% sugar·solution
d. Hypotbriic ·solution . .
b. 10% sugar solution · .·:· · io% salt solution c,
.-. ·· -' :: .' ' .-... ,:
(iv) If the cobalt chloride pap ertu rns
'pink,"i t shows 1 • ' :- • •
[1]
a. Photosynthesis in leaves b. tran
spiration c. respiration d. All of the
se
(v) The firs t step of photosynthesis is
..
[1]
' a. ionisation of wat er ·
· b. fixation of CO2
c. excitation of chlorophyll i:' d. form atio n of ATP
(vi) Ageing in plants ~ ~ ~ \y~~raying [1]
a. gibberellins b. cytokinins c. eth
• • .
ylene .~. Auxins
' ' ' l I ~ ' ' ..

(vii) The firs t heart sound LUBB

is produced when
[1]
a. . diastole begins
b;•semllunar valves closes
c. inte rve ntri cula r pressure increas
es • d. Atrioventricular valves clos
es
Grade 10(1CSE) Firs t Prelim .Pap er (20
24~20·25) (Released date: 20/ 12/ 202
4) Page 1 '
 (viii) More ADH means

a. less permeable OCT b. concentrated urine

c. dilute urine d. fall in blood osmotic pressure

(ix) Which one of the following is an innermost membrane that covers the brain
a. arachnoid b. duramater c. piamater d. grey matter
(x) Colour of eye like blue or black is due to
a. sclera b. choroid c. retina d. iris
(xi) Acromegaly is due to oversecretion of

a. GH in children b. GH after adolescence c. ACTH d. Thyroid in adult

(xii) Vas deferens is a part of

a. testis b. epididymis c. accessory glands d. duct system

(xiii) Prathamesh is curious about the function of the following organ. [1]

a. make eardrum vibrate

b. secretion of wax
c. amplify the sound
d. equalizes air pressure between the middle ear and the external ear
(xiv) Industrial melanism was highlighted by: [1]
a. Polar bear
b. Butterfly
c. Peppered moth
d. Bear

(xv) Assertion (A): Air pollution has increased dramatically in the past 30 years. [1]

Reason (R): Enormous intrease in human population has increased the demand
for food, water, electricity, etc.

a. Both assertion and reason are true and reason is the correct explanation for
the assertion
b. Both assertion and reason are true but reason is not the correct explanation
for the assertion
c. Assertion is true but reason Is false
d. Both assertion and reason are false
I I
Question 2 (I) Name the following: [S] [25)

(a) The thinnest blood vessel In the body.

(b) Bony case that protect the brain.

(c) Blood vessel that take the blood to the kidney.

Grade l0(ICSE) First Prelim Paper (2024-2025) (Released date: 20/12/2024) Page 2
 {d)
Ha mm er shaped ear bone of
-
mid dle ear.
(e)
Ho rmo ne tha t regulates basal
metabolism.
(II)
Arr ang e and rew rite the ter ms
In each gro up In the cor rec t ord
a logica l sequence beginning with the term er so as to be In [S]
that Is underlined.
(a)
Cell me mb ran e, Chromatin fibr
es, Cell wall, Cytoplasm.
(b) Root hair. Endodermis, Epider
mis, Xylem, Cortex.
(c) Conjunctiva . Yellow spot, Pup
il, Vitreous Humour, Aqueo~s
Humour.
(d) Art ery . Capillaries, Venule, Vei
n, Art erio le
(e) Stomata, Xylem Vessels, Mesop
hyll cells, Root hairs
{Iii) Fill in the blanks
with suitable we rd/words and re~_
rite the paragraph: [5]
The technical ter m for short sigh
tedness is (a) ......... :..... . This def
because the eyeball is (b) ..... ..... ect is caused
. .... . fro m fro nt to b~ck or the lens
............... . It can be corrected . is too (c)
by using a suitable (d) ...............
oft he lens is me ntio ned in (e) len s.T he pow er
............... .
{iv) Choose the odd one out
from the following terms and name the cat
which the others belong: egory to [5]
(a) Renal pelvis, Renal vein, Renal
Cortex, Renal medulla
(b) Uro chr om e, Urea, Keratin, Uri
c.acid .. ._
{c) Semi-circular canals, Cochlea,
.Eustachian tube, Sacculus

(d) Exophthalmic Goiter, Simple Go

itre, Cretinism, Myxoedema
(e) ADH,NADP,ACTH,TSH

(v) Give the exact location of the foll

owing structure. ·
[5]
(a) Centromere.
(b) Lenticels
(c) Guards cells
~-..,..- -

(d) Mit ral valve

(e) Proximal con vol ute d tubules

SECTION B (Attempt any four que

stions from this Section.)
Question 3:
(i) (10]
Name two genetic disorders com
mo nly seen in human males
(ii) Explain the diff ere nce between
[1]
dom ina nt and recessive tra its
fro m Me nde l's experiments. wit h examples [2]
(iii) Haemorrhage fre que ntly hap
pens in viral dengue fever. Co
wit h hae mo phi lia. mpare this con diti on [2]
{iv) State Me nde l's law of Dominanc
e i·
[2]

Grade lO(ICSE) Fir st Pre lim Pap

er (20 24- 202 5) (Re lea sed dat e:
20/ 12/ 202 4) Pag e3

_J
 (v) A woman with normal vision has a colorblind father. She marrie s a colorbl nd
i 13]
man.
"What is the probab ility that their children will be colorbl ind?" Show your
reasoning by the help of Punnett square.

Question 4:

(i) Write the main functio n of oxytocin ·.

(ii) Name the WBC's shown in the diagram below.
a)
b) ~
.
.

(iii) Differe ntiate betwee n Gout and Albumiwqria.

[2]
(iv) Give the scientific names of
[2]
a) Pea plant
b) Peppered moth

(v) The figure given is a cross section of the root. Study it and answer the questio
ns [3]
given below.

,:· :,r·:;;-;;:ii" , ,, ~ · · , \
. _..'., ~tj >

.....
~· ,,
,.

.. j
): ~•
,;;:,:,_

,~<~ _ _{\:\(\
I

' / •~- · ~r:, _ )!i!(t'()ML:f\l,::> {J.~':0(~'\l{;:~i;::~r./.

a) Name the process involved _in the flow of water from Al to A2

b) Mentio n two import ant features of part (a) that help it to absorb water
c) What is the functio n of part "d" in a plant?
Questi on 5:
[10)
(i) Define 'Speciation'
[1]
(ii) Raman was spin,ning around himsel f for a long time. He felt giddy after
some [2]
time.

a) What must be the reason for his giddiness?

b) What is the remedy for it?
(iii) Name the two inorganic conten ts of urine.
[2]
(iv) Give the full form of
[2]
a) NADP
b) IAA

Grade 10(1CSE) First Prelim Paper (2024-2025) (Released date: 20/12/ 2024)
Page4
,, (v} The diagram given below represen
question that follow:
.
ts a section of the human heart. Answer the [3]

phase? Give a reason to support [1]

a) Which parts of heart r;are in the diastolic
your answer.
diagram. [1]
b) Label the parts numbered 1 and 2 in the
& 2? [1]
c) Wha t type pf blood flows through parts 1

sorption of wate r by kidney tubules. [1] [10]

Question 6: (i) Name the hormone that increases reab
cold weather. What could be the [2]
(ii) A patie nt produces very dilut e urine, even in
be treated?
possible reasons, and how can this condition
of urine formation. [2]
(iii) Name and explain the two main stages
ing out from dark room. [2]
(iv) Why does one feels like blind after com
er the questions that follow. [3]
(v) Observe the diagram shown below and answ

a) Identify the Part B

b) Write the function of Part A
s.
c) Name the part connecting A with the foetu

fReleased date: 20/1 2/20 24) Page 5

2~1
 Question 7: A
A W]
l
(i) Where in the body is the Pancreas located? [1]
(ii) Why is the pancreas referred to as an exo-endocrine gland? (2]
(Ill) Salt water gargling is suggested for throat Infection, give reason. (2)
(iv) Write any two methods of contraception by barrier method. (2]
(v) a. Name the structure formed by the villi of embryo and uterus of mother. [3]
b. What is the role played by inguinal canal?
c. What is the significance of amniotic fluid?

Question 8:
[10)
(i) Differentiate between Vasectomy and Tubectomy.
[1]
(ii) Write any two reasons of population explosion in India.
[2]
(iii) Explain the steps in Darwinism.
[2)
(iv) What do you mean by thermal pollution?
[2]
(v) Draw a neat and labeled diagram of Reflex action in Reflex arc. [3]

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