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P.T.O.
MAR IVANIOS COLLEGE (AUTONOMOUS)
THIRUVANANTHAPURAM
Reg. No. :.………………… Name :.…………………
Second Semester Career Related B.Sc. Degree Examination, June 2016
First Degree Programme under CBCSS Vocational Course II: (for Botany and Biotechnology)
AUBB251: Microbial Metabolism, Genetics and Diseases
Time: 3 Hours Max. Marks: 80
SECTION A
Answer ALL the following in a word or one or two sentences.
1. What is the function of mesosomes
2. Another name for glycolytic pathway.
3. What are the sources of energy for microorganisms
4. Define conjugative plasmid.
5. What is the advantage of having overlapping genes in prokaryotes
6. What is the role of F pilus
7. Name the gene transfer mediated through viruses.
8. Name the causative organism for Tuberculosis.
9. What is the expansion of MDR with respect to drugs
10. Name one water borne deadly viral disease transmitted also by blood transfusion.
(10 × 1 10 Marks)
SECTION B
Answer any EIGHT questions, not exceeding a paragraph.
11. Explain Bacterial Growth Curve.
12. How biofilm help bacteria to survive
13. What is peptidoglycan
14. Briefly explain endospore in bacteria with a diagram.
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15. How microorganisms are classified according to temperature range of growth
16. How many NADH molecules are produced in glycolysis from one molecule of glucose Write the reaction equation.
17. What are Facultative anaerobes
18. Explain the structure of Flagella.
19. What is the composition of choleragen
20. Distinguish Prokaryotic and Eukaryotic cell.
21. How uncontrolled stimulation of skeletal muscle occurs in tetanus
22. Write about the symptoms of anthrax.
× 2 16 Marks)
SECTION C
Short essay type Answer any SIX questions.
23. What are the functions of prokaryotic structures
24. Briefly describe the factors affecting the growth of bacteria.
25. Write a note on Glycolytic pathway.
26. Write notes on transposons
27. Discuss about a disease caused by virus belonging to Togaviridae.
28. How Griffith did an experiment to prove that there is a transforming principle
29. Explain Plasmids and different types of Plasmids.
30. What is botulism
31. Write about mycobacterial diseases.
× 4 24 Marks)
SECTION D
Long essay type Answer any TWO questions.
32. Explain the role of microbes in Nitrogen cycle.
33. Explain the different methods of gene transfer in bacteria.
34. Describe the mechanism of lambda phage transduction in ecoli
35. Write about four food borne and waterborne viral diseases.
× 15 30 Marks)