M.Sc. DEGREE EXAMINATION, NOVEMBER 2017
First Semester
Microbiology
Core III MICROBIAL PHYSIOLOGY
(CBCS 2016 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Define Synchronous growth.
2. What is facultative autotroph?
3. Define anoxygenic.
4. Role of Helio bacteria.
5. Mention any four symbiotic nitrogen fixing bacteria.
6. What is deamination?
7. What is microbial stress response?
8. What is biofuel?
9. Define Coupling reaction.
10. Differentiate diffusion and Osmosis.
Sub. Code
530103
RW-875
2
WK16
Part B x 5 25)
Answer all questions, choosing either or
11. Differentiate between growth rate and generation
time of a microorganisms.
Or
Write about the nutritional types of bacteria.
12. Describe in detail about the major function of
Carotenoids and Phycobilins in photosynthesis.
Or
Explain the mechanism of Non cyclic electron
transport system.
13. Write about the structure and function of
Nitrogenase.
Or
Write short notes on acetylene reduction assay.
14. Discuss about the starvation stress in microbes.
Or
Write a detail account on microbial synthesis of
Lactic acid fermentation.
15. Explain the principles and different laws of thermo
dynamics.
Or
Explain the chemiosmotic theory of Mitchell.
RW-875
3
WK16
Part C x 10 30)
Answer any three of the following.
16. Write an essay on the factors affecting microbial growth.
17. Write in brief about the characters of different group of
Photosynthetic bacteria.
18. Write an historical account about nitrogen fixation?
Mention in brief about the different group of
Microorganism fixing nitrogen.
19. Describe the various types of stress responses in
microbes.
20. Describe ATP as a bioenergetics.
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