ASSIGNMENT - 1, MAY M.Sc., FIRST YEAR (PREVIOUS) DEGREE. Microbiology Paper I INTRODUCTION MICROORGANISMS. Maximum : 20 MARKS

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1 (DMB 01) ASSIGNMENT - 1, MAY Paper I INTRODUCTION MICROORGANISMS 1. Spontaneous generation. 2. Discovery of antibiotics. 3. Mycoplasmas. 4. Staphylococcus. 5. Compare and contrast the prokaryotes and eukaryotes. 6. Elaborate the contributions of Louis Pasteur and Robert Koch. 7. Give a detailed account on rhizobium and discuss its role in nitrogen fixation. 8. Outline the principle of bacterial taxonomy.

2 (DMB 01) ASSIGNMENT - 2, MAY Paper I INTRODUCTION MICROORGANISMS 1. Chemistry of viruses. 2. TMV. 3. Economic importance of fungi. 4. Ascospore production in yeast. 5. Describe the discovery and morphology of viruses. 6. Explain the study on subviral particles. 7. Discuss the structure, reproduction and economic importance of microalgae. 8. How the protozoans are classified and discuss their significance.

3 (DMB 02) ASSIGNMENT - 1, MAY Paper II MICROBIOLOGICAL METHODS 1. Ethylene oxide treatment. 2. Differential staining. 3. Wivograndsky column. 4. Lyophilization. 5. Elaborate on the methods used for the physical sterilization. 6. Outline the principle and applications of Electron Microscopy. 7. Describe the methods used in the anaerobic culturing. 8. How to isolate the single cells of bacteria.

4 (DMB 02) ASSIGNMENT - 2, MAY Paper II MICROBIOLOGICAL METHODS 1. Plaque assay. 2. Detectors of GLC. 3. Beer - Lambert law. 4. Isoelectric focussing. 5. Give a detailed account on the principle and applications of HPLC. 6. Explain the methods used in the isolation and purification of viruses. 7. Discuss the applications of Two dimentional and pulse field electrophoresis. 8. What are the uses of radio active substances in Biology?

5 (DMB 03) ASSIGNMENT - 1, MAY Paper III MICROBIAL PSYSIOLOGY AND BIOCHEMISTRY 1. Generation time. 2. Active transport. 3. Phototrophs. 4. Heterocyst. 5. Elaborate on the factors affecting bacterial growth. 6. How to measure the bacterial growth. 7. Explain the anoxygenic photosynthesis of purple and green bacteria. 8. Write an essay on chemoautotrophy.

6 (DMB 03) ASSIGNMENT - 2, MAY Paper III MICROBIAL PSYSIOLOGY AND BIOCHEMISTRY 1. ATP structure. 2. Uses of lactic acid. 3. Enzyme nomenclaure. 4. Pyramidines. 5. Outline the electron transport chain of bacteria and eukaryotes. 6. Give an account on ethanolic fermentation. 7. Derive the Michaelin-Menten equation and discuss the importance of KM and VMAX values. 8. What are the properties of allosteric and isoenzymes?

7 (DMB 04) ASSIGNMENT - 1, MAY Paper IV ENVIRONMENTAL AND AGRICULTURAL MICROBIOLOGY 1. Microbial propagates of air. 2. IMVic Test. 3. Rhizosphere. 4. Sulphers cycle. 5. Explain the personal and diurnal periodicities of air spora. 6. Give an account on sewage treatment. 7. Describe the diversity and abundance of soil Microorganisms. 8. Outline the Nitrogen cycle and discuss the role of microorganisms in the maintenance of nitrogen cycle.

8 (DMB 04) ASSIGNMENT - 2, MAY Paper IV ENVIRONMENTAL AND AGRICULTURAL MICROBIOLOGY 1. Root Modules. 2. Rhizobacteria. 3. Plant pathogenic bacteria. 4. Biological control. 5. Elaborate on the utilization of Bioinoculants. 6. Write an essay on phosphate solubilizing microorganisms. 7. Discuss the following any two plant diseases and their control (i) (ii) Blast of rice. Soft rot of vegetables (iii) Black sterm rust of wheat. 8. How to develop disease resistant plant varieties.