Microbiology & Cell biology-Biotechnology-BSC-Nagpur-Summer-2019 - Grad Plus

Microbiology & Cell biology-Biotechnology-BSC-Nagpur-Summer-2019

Bachelor of Science (B.Sc.) Semester-2 Examination
BIO-TECHNOLOGY (Microbiology & Cell biology)

Optional Paper—2
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 in detail various phases of growth curve. [10M]


(a) Discuss the classification of micro-organisms on the basis of pH and temperature. [5M]

(b) Explain use and working of a chemostat. [5M]

2. Describe temperature as a physical agent for microbial control. [10M]


(a) Describe filtration as a method of microbial control. [5M]

(b) Describe any two chemical methods for microbial control. [5M]

3. Describe the structure and functions of golgi complex. [10M]


(a) Write a note on endoplasmic reticulum. [5M]

(b) What is lysosome ? Explain its functions. [5M]

4. Describe various stages of mitosis. [10M]


(a) Write a note on neuromuscular junctions. [5M]

(b) Write a detailed note on cell cycle. [5M]

5. Solve any TEN of the following :

(i) Define pure culture. [1M]

(ii) What is synchronous culture ? [1M]

(iii) What is generation time ? [1M]

(iv) What is meant by incineration ? [1M]

(v) What are anti-microbial agents ? [1M]

(vi) Give one example of antiseptic. [1M]

(vii) Name the organelle of a eukaryotic cell where genetic material is concentrated. [1M]

(viii) Give one function of vacuoles. [1M]

(ix) Give one function of peroxisomes. [1M]

(x) What is meant by “G” in G-Actin ? [1M]

(xi) Define meiosis. [1M]

(xii) Name any one neurotransmitter used in synaptic transmission. [1M]

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