BSc. Life Sciences -I: Physiology & Ecology-Mumbai-April 2019
MUMBAI UNIVERSITY
Subject: Life Sciences -I: Physiology & Ecology
Semester:2
[Total Time: 2.30 Hours]
[Total Marks: 75]
Instructions:
i) All questions are compulsory
ii) All questions carry equal marks
iii) Figures to the right indicates full marks
iv) Draw neat labeled diagrams wherever necessary
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Q. 1) Do as directed (any 15) (15M)
Fill in the blank
1) The CO2 acceptor in C4 plants is____________
2) Light harvesting complex-II is located in the __________
3) Carbon assimilation phase is also called as _________
4) __________ promotes growth of shoots at a relatively higher concentration.
5) The C4 cycle may also be referred to as___________
6) __________ is the only gaseous hydrocarbon hormone
7) _______are also called as man-made or man engineered ecosystem
Define:
8) Photosynthesis
9) Enzymes
10) Assimilation of food
11) Anticoagulants
12) Blood pressure
13) Decomposers
14) Food chain
15) Water cycle
16) Primary productivity
Answer the following:
17) Give the function of efferent renal arteriole
18) Give the importance of pulmonary vein in mammalian heart
19) Give the significance of Vitamin K in clotting
20) Give the role of salivary amylase indigestion
Q. 2) a) Write the Interrelationships between Light and Dark Reaction. (8M)
b) Write short note on C4 cycle.(7M)
OR
c) Write short note on Photorespiration. (8M)
d) Write the important roles of Abscisic acid. (7M)
Q. 3) a) Describe the internal structure of a mammalian heart with a neat labeled diagram. (8M)
b) Give an account of structure of hemoglobin and its polymorphism. (7M)
OR
c) Define and explain aerobic and anaerobic respiration. (8M)
d) Describe the structure and function of Nephron. (7M)
Q. 4) a) Elaborate on non-living and living components of an ecosystem. (8M)
b) Explain in detail about any one type of ecological pyramid. (7M)
OR
c) Explain in detail about parasitism with suitable examples. (8M)
d) Describe carbon cycle in detail. (7M)
Q. 5) Write short notes on (any three) (15M)
1) Secondary Metabolites
2) Auxins
3) Gastric digestion
4) RBC
5) Function of an ecosystem.
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