B.Sc. DEGREE EXAMINATION, APRIL 2018
First Semester
Microbiology and Clinical Lab Technology
GENERAL MICROBIOLOGY
(CBCS 2017 onwards)
Time 3 Hours Maximum 75 Marks
Part A (10 x 2 20)
Answer all questions.
1. Define spontaneous generation.
2. What is meant by 'Animalecules'?
3. Explain the term compound microscope.
4. Staining
5. Cell inclusions
6. Protozoa
7. Disinfectants
8. Radiation
9. Lag phase
10. Nutrient transport.
Sub. Code
7BMC1C1
AFS-0378
2
ws2
Part B x 5 25)
Answer all questions, choosing either or
11. Write down the contributions of Louis Pasteur.
Or
Explain about Haeckel's three kingdom concept.
12. Brief the procedure for capsule staining.
Or
Give an account on the working principle of TEM.
13. Comment on the reproduction of bacteria.
Or
Narrate the cell wall composition gram positive
bacteria.
14. Write a short note on enrichment media.
Or
Add short notes on chemical sterilization.
15. List out the nutritional groups of bacteria.
Or
Mechanism of active transport in bacteria
Explain.
AFS-0378
3
ws2
Part C x 10 30)
Answer any three questions.
16. Discuss the scope of microbiology in detail.
17. Explain in detail the working principle and applications
of phase contrast microscope with diagram.
18. Describe in brief the general characteristics of virus.
19. Give an detailed account on physical methods of
sterilization and its uses.
20. Explain the growth phases of bacteria.
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