AHSEC| CLASS 11| BIOLOGY| QUESTION PAPER - 2016| H.S.1ST YEAR
2016
Biology
(Theory)
Times: 3 hours
Full marks: 70
Part - I (Botany)
1. Define species. 1
2. Why apple is called false fruit? 1
3. What is Kranz anatomy? 1
4. Write the importance of herbaria. 2
5. Draw and label the prothallus of fern. 2
6. Differentiate between parasitic and epiphytic plants with
examples. 2
7. Write the functions of stomate. 2
8. Explain the specific role of cytokinin in plant growth an
development. 2
9. Write the structure and functions of Golgi complex with
diagram. 1+1+1=3
10. Name different types of RNA. Mention their functions. 1+2=3
11. Explain the role of macronutrients found in plants. 3
12. Discuss the Blackman’s law of limiting factor with help
of graphic representation. 3
13. “Flower is a modified shoot.” Justify the statement. 5
14. What is Ascent of sap? Describe the transpiration pull
and cohesion of water theory.
1+4=5
Or
Write the Tricarboxylic
Acid Cycle of plant respiration. 5
Part – II (Zoology)
1. fill in the blanks: 1x5=5
(i) ______chambered heart is
found in Amphibia.
(ii) Water vascular system is a
distinctive feature of _________.
(iii) Meiosis is also called
_____division.
(iv) The protein found in Milk is
________.
(v) _______was the link between
reptiles and birds.
2. Write the answer very briefly: (any four) 1x4=4
(a) What is
diphyodont dentition?
(b) What is
heparin?
(c) Which is the
largest part of the brain?
(d) What is
gastrin?
(e) What is link
gland?
(f) What is
hirudin?
3. Write the difference between the following (any
two) 2x2=4
(i) Cytokinesis
and Karyokinesis.
(ii) Axon and
dendron.
(iii) Endocrine
gland and exocrine gland.
(iv) Prototheria
and eutheria.
4. Answer the following briefly: (any three) 2x3=6
(a) Why Amoeba
is called immortal?
(b) Write the
function of vasopressin hormone.
(c) Why Villi
are present only in intestine not in the stomach?
(d) Write the
significance of meiosis.
(e) Why spleen
is called graveyard of Red Blood Corpuscles?
5. Write short note on: (any two) 3x2=6
(i) Primates
(ii) Phagocytosis
(iii) Cutancous
respiration
(iv) Blood coagulation
(v) Nephron
6. What is hormone? Write the chemical nature of hormone. Mention
the four important functions of thyroxine hormone. 1+2+2=5
Or
What is nervous
system? Draw a labelled diagram of a neuron. Write the functions of automatic
nervous system. 1+2+2=5
7. What is respiration? Name the different parts of human
respiratory system. How diaphragm help in inspiration and expiration? 1+2+2=5
Or
What is bile? How
bile pigments are formed? Write the role of bile in digestion. 1+2+2=5
***
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