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Microbial Diversity-Microbiology-BSC-Nagpur-Summer-2019

Bachelor of Science (B.Sc.) Semester—1 Examination
MICROBIOLOGY  (Microbial Diversity)

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. (a) Give the general account of Mycoplasma. [5M]

(b) Discuss the various characters of Methanogenic bacteria. [5M]


(c) Describe the various characters of Rickettsia. [5M]

(d) Give an account of Chlamydia. [5M]

2. Define and differentiate between Prokaryotes and Eukaryotes. [10M]


Explain sexual reproduction in Fungi in detail. [10M]

3. (a) Draw a well labelled diagram of T4 phage. [2½M]

(b) Explain complex symmetry of virus along with diagram. [2½M]

(c) Describe haemagglutination method in detection of virus growth. [2½M]

(d) Describe helical symmetry of virus. [2½M]


(e) Explain the scheme of LHT classification of virus. [2½M]

(f) Explain chick embryo method for virus cultivation. [2½M]

(g) Write general characteristics of viruses. [2½M]

(h) Give diagrammatic representation of Lytic Cycle. [2½M]

4. Explain various negative microbial associations with suitable examples. [10M]


(a) Write a note on Luminescent bacteria. [5M]

(b) Describe life cycle of Bdellovibrio. [5M]

5. Solve any ten questions :

(i) What is Heterocyst ? [1M]

(ii) What is Geosmin ? [1M]

(iii) Name any two antibiotics produced by streptomyces. [1M]

(iv) What is Sporangium ? [1M]

(v) Name the protozoan causing sleeping sickness. [1M]

(vi) Name any two asexual spores of fungi. [1M]

(vii) Name any two viruses with icosahedral symmetry. [1M]

(viii) What is virion ? [1M]

(ix) Define lysogeny. [1M]

(x) What is Mutualism ? [1M]

(xi) Give any one example of synergism. [1M]

(xii) Give example of root nodule bacteria. [1M]

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