B.Sc. DEGREE EXAMINATION, NOVEMBER 2017
First Semester
Microbiology and Clinical Lab Technology
GENERAL MICROBIOLOGY
(CBCS 2015 onwards)
Time: Three Hours Maximum: 75 Marks
Part A (10 x 2 20)
Answer all the questions.
Define/Comment on
1. Biogenesis
2. Joseph Leister
3. Peptitoglycon
4. Cell theory
5. Hot air oven
6. Tyndallization
7. Dettol
8. Antibiosis
9. Diffusion
10. ETS.
Sub. Code
5BMC1C1
AFF-5006
2
Ws3
Part B x 5 25)
Answer all questions choosing either or
11. How will you disprove spontaneous generation?
Or
State and explain Koch's postulates.
12. Depict the structure of a virus.
Or
Explain the process of binary fission.
13. Differentiate selective media and differential media.
Or
Give an account on photoautotrophs.
14. How will you assess the antibiotic sensitivity?
Or
Write a brief account on chemotherapy.
15. Demonstrate the transport of sodium across the
membranes.
Or
Explain the mechanism of nitrate reduction.
Part C x 10 30)
Answer any three questions.
16. Explain the principle, instrumentation and working of
TEM.
17. Give the salient features of five kingdom classification.
AFF-5006
3
Ws3
18. Describe different methods of physical sterilization.
19. Elucidate the factors influencing the growth of
microorganisms.
20. Write down the process of oxidative phosphorylation and
ATP generation.
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