Thapar University 2006 B.Tech Biotechnology Microbiology - Question Paper
Thapar Institute of Engineering & Technology
B.Tech. Biotechnology (2nd Year)
Final Term exam
BT002 (Microbiology)
End Semester Examination BT-002: Microbiology B.Tech. Biotechnology Instructor: Dr. Akepati S. Reddy Date: 14-12-2006 Time: 9-00 to 12.00 hours Max. Marks: 100
Q.l. Answer all the following:
1.1 Differentiate antiseptic from disinfectant?
1.2 Sarcine refers to what?
1.3 What are plasmids?
1.4 List the different types of RNA involved in the protein synthesis?
1.5 Indicate cell wall materials for algae, fungi, and bacteria?
1.6 Arrange family, phylum, strain, order, species, class, family and genus in a hierarchical order?
1.7 What are Akinetes?
1.8 Indicate any two major metabolic differences between pseudomonads and enterics?
1.9 State how viruses are different from viroids and prions?
1.10 What is polyprotein?
1.11 What is serotype?
1.12 What is Reye syndrome?
1.13 What is mixotroph?
1.14 What is coenobium?
1.15 What is diatomaceous earth?
1.16 What for cavity slide is used?
2.1 Write note on group translocation?
2.2 Discuss how prokaryotic ribosomes differ from the eukaryotic ribosomes?
2.3 Indicate the basic types of microorganisms on the basis of their source of energy and source of carbon?
2.4 What are cladograms? Indicate the basis for the construction of cladograms?
2.5 List the inorganic compounds usually utilized by lithotrophs as sources of energy?
2.6 Indicate the steps involved in the replication cycle of an animal virus?
2.7 Discuss how HIV infection leads to immune deficiency in the host?
2.8 Write note on red tides?
2.9 Write note on slime net?
2.10 Write note on negative staining?
Marks: 10x2=20
Q. Answer any eight of the following:
3.1 Write note on the conditions to be satisfied while writing the name of an organism according to binomial nomenclature?
3.2 Discuss the role played by different types of RNA in the protein synthesis at ribosomes?
3.3 Discuss how gram-negative bacteria, gram-positive bacteria, acid-fast bacteria and micoplasma differ in their cell wall structure and composition?
3.4 Write note on the functions performed by lysosomes?
3.5 Differentiate biological nitrogen fixation from nitrification and denitrification?
3.6 Discuss how viruses are believed to cause cancer?
3.7 Discuss the sequence of events that might have resulted in the evolution of eukaryotes from prokaryotes?
3.8 List the classes included in protozoa and give at least one salient feature and one example for each of the classes?
3.9 Write note on the life cycle types of algae?
3.10 Write note on the culture preservation techniques?
4.1 Write note on the contributions made by Louis Pasteur in the field of microbiology?
4.2 Write note on the structure of bacterial flagellum and discuss how it differs from the flagella of eukaryotes?
4.3 Write note on Bergeys manuals?
4.4 Write note on viral vaccines and indicate advantages and disadvantages of different types of viral vaccines?
4.5 Write note on plasmodial slime molds and discuss how they differ from cellular slime molds?
4.6 Write note on dilution plate technique and differentiate pore plate technique from spread plate technique?
Marks:5x4=20
Q.5. Answer any four of the following:
5.1 Write note the Whittakers classification of life forms and relate this classification with the 3-domain system of classification and with the 7-kingdom classification of life forms?
5.2 Indicate different types of phosphorylation and the place of their occurrence both in mitochondria and chloroplasts? What is chemiosmosis and describe how it brings about phosphorylation?
5.3 Write note on Mycobacterium?
5.4 Describe the replication cycle of hepatitis B virus?
5.5 Write note on the photosynthetic pigments of different groups algae?
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