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Kissan bahuuddeshiya sanstha' su

KISSAN INTERNATINAL SCHOOL AND JLINIOR

COLLEGE,PARNER
Summative Assessement -I(2024 -25)
Class :- XI(CBSE) Sub :- BIOLOGY Marks :-70

General Instructions

I) All instructions
are compulsory.
D The question paper has Five Sections & 33 questions A11 questions are
compulsory.
m) Sections A has 16 questions of 1 marks each. Section B has 5
questions of 2 marks each. Section C has 7 questions of 3 marks each.
IV) Section D has 2 case based questions of 4 marks eachAnd Section E
has 3 questions of 5 marks each.
V) There is no overall choice , However internal choice have been
provided in some questions
VD Whenever necessary ,neat and properly labelled diagrams should be
drawn

SECTION-A

Ql)The body can be divided into identical left and right halves only
in one plang called.
a)Radial symmetry b) bilateral Symmetry
c) asymmetry d) none
2)In chlorophyceae the cellwall is made up of
a) Cellulose b) align c) pectin d) none
3) The phylogenetic classification is based on

a) Evolutionary relationship b) Number & codes

c) Chromosome number d) chemical constituents

4) The frog excretes urea hence it is .
 a) ammonoelic b) ureotelic c) urecotelic d) none
5) Monocotyledonous leaves are

a) dorsivenntral b) Round c) Pinnate d) isobilaterul

6)The number of nymph produced from single ootheca of the frog is

a)12 b)16 c)15 d) 10

7) In gymnosperrns cross pollination is accompanied by. .. ..

a) water b) bats c) Insects d) Wind

8) The ftog undergoes deep sleep during summer called..--.

a) hibernation b) Aestivation c) Camouflage d) none

9) In floral formula C stands for
a) androecium b) calyx c) corolla d) cone
10) In phylum Annelida the function of osmoregulation & excretion
are performed by. . . . . ...

nephridia b) Malphigian tubule c) Kidney d) none

I
a)

11) In rhodophyceae the food is stored in the form of ......

a) Starch b) Mannitol c) Floridean d) none

12) When five kingdom system of classification is proposed....

a) 1989 b) 1979 c) r9s9 d0 1969

13) Assertion (A) The plasmodium often possess a number of
branched veins
Reasons (R) The position of veins are remain fixed.

a) Both A and R are true and R is the correct explaination of A.

b) Both A and R are true but R is not the correct explaination of A.
c) A is true but Ris false.
d) A is false but R is true.
l4)Assertion (A) Oil have a lower melting pointAnd hence remain as
oil in winters.
Reason (R)

a) Both A and R are true and R is the correct explaination of A.

b) Both A and R are true but R is not the correct explaination of A.
c) A is true but Ris false.
d) A is false but R is true.
15)Assertion (A) Inspiration can occour If the pressure within the
lungs is less then the atmospheric pressure.
Reason (R) Expiration takes place when the intrapulmonary pressure
is higher than the atmospheric pressure.

a) Both A and R are true and R is the correct explaination of A.

b) Both A and R are true but R is not the correct explaination of A.
c) A is true but Ris false.
d) A is false but R is true.
l6) Assertion (A) Abdominal muscle is related with respiration in
animals.
Reason (R) Relaxation of abdominal muscles draws in air.

a) Both A and R are true and R is the correct explaination of A.

{
b) Both and R are true but R is not the c.orrect explaination of A.
c) A is true but Ris false.
d) A is false but R is true.
Section - B
17) Mention the function of ureter in frog, & write the function
of forelimbs & hindlimbs.
18) How is the study of plant anatomy helpful to us.

19)What is venation & Write it's type.

20) How important is the presence of Air bladder in pisces.
2L) What is phycobionat & mycobiont.
 Or
What is plasmogamy &Karygamy.

Section C
22) Write the classification of algae, in brief?

23) What is flower? Describe the parts of a typical angiosperms flower.

24) Write the morphological characters of Frog.

25) What is stomatal apparatus? Explain the structure of stomata with a
labelled diagram.

26) Name the components of the formed elements in the blood & mention one
major function
Of each of them.
27) Write the characteristics feature of class Mammalia.
Or
Explain the male reproductive system of frog with a labelled diagram.
28) Write the characteristics feature of Euglenoids .With a diagram.

Section - D

29) Read the following questions carefully and answer the questions
The morphology of the mycelium mode of spore formation and fruiting bodies
forms the basis

For the division of the fungi kingdom into various classes which includes four
sub divisions

Phycomycetes, ascomycetes, basidiomycetes, Deuteromycetes. Members of

phycomycetes

Are found in aquatic habitats & on decaying wood in moist and damp places
or as obligate
 Parasites on plants ascomycetes are mostly multicellular. The asexual spores
are conidia produce exogenously on the special mycelium called
conidiophores. Basidiomycetes are mushrooms , bracket fungi

Or puffballs. They grow in soil, on logs and tree stumps, and in living plant
bodies as parasites.

The Basidiospores are Exogenously produced on the basidium

Classification of Fungi
Basidiomycetes
Phycomycetes Ascomycetes ( club Fungi) Deuteromycetes
( Lower ( Sac fungi ( Imperfect

Saprolegnia Yeast Agrius Cerc

Rhizopus Aspergillus Polypore Colletotrichum
Mucor Penicillium Puccinia Trichoderma
Albugo Neurospora Ustilago atta
Pythium Peziza Lycoperdon Fusarium

1) Obser given table of classification of fungi and identif, the classes of fungi
in which asexual spores are not found vegetative reproduction occurs by
fragmentation, and sexual organs are absent (1)
2) Where are members of phycomycetes found ? ( 1)
3) What is ascomycetes? What is the characteristics features of ascomycetes
and basidiomycetes? (2)
Or
Write the characteristics feature of Mushroom. (2)
3O)Read the following text carefully and answer the questions below.

The androecium is composed of Stamens. Each stamen that represents the

male reproductive organ

Consist of stalk or a filament and an anther. Each anther is usually bilobed and
each lobe has two

Chambers, the pollen sacs. Stamens of flowers may be united with other
members such petals or

Among themselves . the stamens may be epipetalous or epiphyllous. A flower

is a modified shoot
 Wherein the shoot apical meristem changes to floral meristem. Internodes do
not elongates

And the axis gates condensed . The apex produces different kinds of floral
appendages laterally at

Successive nod.es instead of leaves The arrangement of flowers on the floral

axis is termed an

Inflorescences.

1) What is androecium composed of (1)

2) The pollen grains are produced in pollen sacs. What is sterile stamen is
called? (1)
3) In salvia and mustard shows variation in the length of filament within a
flower? (2)

Section -E

31) with a labelled diagram describe the digestive system of Frog.

Or
what is binomial Nomenclature? write its different rules

32) with a labelled diagram describe the structure of Bacteriophage.

Or

Define nomenclature & class ? write the hierarchical arangement in

ascending order.

33) Describe the internal structure of a dorsiventral leaf with the help
of
labelled diagram.