XI Standard - 11th - Biology - First Midterm Test Question Paper - Samacheer Kalvi
First Mid Term Test
BIOLOGY
Class : XI Max. Marks: 70
Bio-Botany Time: 3 hours
I.
CHOOSE THE CORRECT ANSWER 8 X 1= 8
1.
Identify the archaebacterium
(a) Acetobactor (b) Erwinia (c) Treponema (d)
Methanobacterium
2.
Which of the following statement about virus is connect?
(a) Possess their own metabolic system (b) They are facultative
parasite
(c) They contain DNA or RNA (d) Enzymes are
present
3.
Which sp. Is called Reindeer moss
(a) erwinia (b) cladonia (c)
roccella (d)
usnea
4.
Antibiotic chloromycetin is obtain from
(a) S.griseus (b) S.aureofaciencs (c) S.venezuelae (d)
S.penicillium
5.
Which of following represents gametophytic generation in pteridophytes
(a) Thallus (b)
Prothallus (c)
Cone (d)
Rhizophore
6.
Endoperm in gymnosperm is formed
(a) At the time of fertilization (b)
Before fertilization
(c) After fertilization (d)
Along with the development of embryo
7.
Which plant group is called Plant Amphibians?
(a) Pteridophytes (b) Bryophytes (c)
Gymnosperm (d) Angiosperm
8.
Sago is obtained from the plant
(a) pinus (b)
cycas (c)
taxus (d) cedrus
II.
Answer any FOUR questions: 4 x 2= 8
9.
Define viroid
10.
Name any two bacterial name with its pathogenic name.
11.
Classify the lichens based on the distribution of algae and fungi partner.
12.
Why bryophytes are called plant amphibians?
13.
Name the fossil plants of plant kingdom.
14.
Draw the diagram of Plecto stele.
III. Answer any THREE
questions (Q.No 19 is compulsory) 3 x
3= 9
15. List out the
economic importance of pteridophytes
16.
Explain Classification of bryophytes.
17.
List out the economic importance of lichens.
18.
Write any three antibiotic from the bacteria
19.
Explain the structure of TMV
IV. Answer the following questions 2 x 5= 10
20.
Tabulate the Economic importance of Bacteria
(OR)
Describe the structure
of Bacteriophage
21.
Tabulate the general characters of green algae (OR)
Difference between gymnosperms and
angiosperms
BIO - ZOOLOGY
I. Choose the Correct Answer 8 X 1= 8
1. Who coined the term biodiversity?
a) Walter Rosen b)
AG Tansley c)
Aristotle d) AP de
Candole
2. Cladogram considers the following characters
a) Physiological and
Biochemical b)
Evolutionary and Phylogenetic
c) Taxonimic and
systematic d) None of the above
3. Which of the following is not correctly paired?
a) Humans – Ureotelic b) Birds –
Uricotelic
c) Lizards – Uricotelic d) Whale – Ammonotelic
4. The limbless amphibian is
a) Icthyophis b) Hyla c) Rana d) Salamander
5. The ciliated epithelium lines the
a) Skin b) Digestive tract c) Gall bladder d) Trachea
6. Prevention of substances from leaking across the
tissue is provided by
a) Tight junction
b) Adhering junction c)
Gap junction d)
Elastic junction
7. Sexually, earthworms are
a) Sexes are separate b)
Hermaphroditic but not self - fertilizing
c) Hermaphroditic and
self – fertilizing d) Parthenogenic
8. Kidney of frog is
a) Archinephros b) Pronephros c) Mesonephros d) Metanephros
II.
Answer any FOUR questions 4x2=8
9. What are earthworm casts?
10. Some epithelia are pseudostratified.
What does this mean?
11. What are flame cells?
12. List the functions of air bladder in
fishes.
13. Why mule is sterile in nature?
14. What is the
role of Charles Darwin in relation to concept of species?
III.
Answer any THREE questions (Q.No 19 is compulsory) 3x3=9
15. What is the difference between a Zoo
and wild life sanctuary?
16. Why flatworms are called
acoelomates?
17. Write the characteristics that
contributes to the success of reptiles on land.
18. Differentiate white adipose tissue
from brown adipose tissue.
19. State the difference between a Frog
and Toad.
IV. Answer the following questions 2x5=10
20. Explain the female reproductive
system of frog. (OR)
Write the classification of connective tissue and their functions.
21. List the characteristic features
that distinguish cartilaginous fishes with living jawless fishes. (OR)
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