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History and Microbial Morphology-Microbiology-BSC-Nagpur-Summer-2019

Bachelor of Science (B.Sc.) Semester—1 Examination
MICROBIOLOGY  (History and Microbial Morphology)

Optional Paper—1
Time : 3 Hours
Maximum Marks : 50

N.B. :— (1) All questions are compulsory and carry equal marks.
(2) Draw well labelled diagram wherever necessary.

1. Explain the experiments in support of theory of biogenesis. [10M]


Discuss the scope of biotechnology, medical microbiology and environmental microbiology. [10M]

2. Describe the structure of cell wall of gram negative bacteria. [10M]


Define plasmid. Discuss various types of plasmids. [10M]

3. (a) Describe various flagellar arrangements of bacteria. [5M]

(b) Write a note on pili and their types. [5M]


(c) Describe the process of germination of spores. [5M]

(d) Write a note on Myxospores and Exospores. [5M]

4. (a) Write a note on Intuitive method of classification. [2½M]

(b) Explain Whittaker’s five kingdom system of classification. [2½M]

(c) Write brief note on classification using GC : AT Ratio. [2½M]

(d) Write short note on 16S rRNA cataloguing. [2½M]


(e) Write a note on DNA hybridization.[2½M]

(f) Explain phylogeny. [2½M]

(g) Give the significance of % (percentage) similarity in the classification of organism. [2½M]

(h) Write salient features ninth edition of Bergey’s manual. [2½M]

5. Solve any TEN :

(i) What is contribution of Pasteur in silk worm disease ? [1M]

(ii) What is exobiology ? [1M]

(iii) Give any two contributions of Winogradsky. [1M]

(iv) What is nucleoid ? [1M]

(v) Give function of mesosomes. [1M]

(vi) Give any two examples of storage granules. [1M]

(vii) Write any two differences between slime layer and capsules. [1M]

(viii) What are Blastospores ? [1M]

(ix) Define Dormancy. [1M]

(x) What is ribotyping ? [1M]

(xi) Define phylogeny. [1M]

(xii) Give significance of binomial nomenclature system. [1M]

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