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Download SGBAU BSc 2019 Summer 2nd Sem Biotechnology Microbiology Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) BSc 2019 Summer (Bachelor of Science) 2nd Sem Biotechnology Microbiology Previous Question Paper

This post was last modified on 10 February 2020

SGBAU BSc Last 10 Years 2010-2020 Question Papers || Sant Gadge Baba Amravati university


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B.Sc. (Part-I) Semester—II Examination

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BIOTECHNOLOGY (R/Y)
(Microbiology)
Time : Three Hours] [Maximum Marks : 80

Note :—

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  1. (1) All questions are compulsory.
  2. (2) Draw well labelled diagrams wherever necessary.
  1. (A) Fill in the blanks : 2
    1. (i) In optical microscope __________ is used as source of illumination.
    2. (ii) In bacterial classification name of the family is suffixed with __________.
    3. (iii) In microscopy, TEM stands for __________.
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    5. (iv) __________ first explained theory of host parasite relationship for pathogenic microorganisms.
  2. (B) Choose correct option :— 2
    1. (i) Mantoux test is used for
      1. (a) Measles
      2. (b) Hepatitis
      3. (c) Tuberculosis
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      5. (d) Polio
    2. (ii) Saccharomyces is
      1. (a) Saccharide
      2. (b) Saccharin
      3. (c) Yeast
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      5. (d) Mold
    3. (iii) __________ is the counter stain in Gram Staining.
      1. (a) Crystal violet
      2. (b) Iodine
      3. (c) Safranin
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      5. (d) Methylene blue
    4. (iv) In microbiology laboratory, bacterial culture is preserved in
      1. (a) Autoclave
      2. (b) Hot air oven
      3. (c) Refrigerator
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      5. (d) Incubator
  3. (C) Answer in ONE sentence each :— 4
    1. (i) Photocell
    2. (ii) Phagocytosis
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    4. (iii) Sterilization
    5. (iv) Lithotrophs
  1. Explain —
    1. (a) Objectives in compound microscope. 4
    2. (b) Membrane filter. 4
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    4. (c) Gaseous chemosterilization. 4
    OR
    1. (e) Simple staining. 4
    2. (f) Typical bacterial cell. 4
    1. (a) Classify microbes on the basis of energy source. 4
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    3. (b) Differentiate between gracilicutes and firmicutes 4
    4. (c) Describe importance of methanogens. 4
    OR
    1. (d) Describe teichoic acids of bacterial cell wall. 4
    2. (e) Differentiate between flagella of Gram positive and Gram negative bacteria. 4
    3. (f) Explain halophiles. 4
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  2. Explain fixation of atmospheric nitrogen by following microorganisms :
    1. (a) Azotobacter 4
    2. (b) Rhizobium 4
    3. (c) Cyanobacteria 4
    OR
    1. (d) Describe symbiotic association. 4
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    3. (e) Define antibiosis. Explain with suitable example. 4
    4. (f) Explain ATP generation steps in electron transport chain. 4
  3. Explain the role of following microbes as agricultural biofertilizers :
    1. (a) Rhizobium 4
    2. (b) Azotobacter 4
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    4. (c) PSB. 4
    OR Explain the importance of following industrially important microorganisms :
    1. (d) Aspergillus 4
    2. (e) Penicillium 4
    3. (f) Spirulina 4
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  5. Describe in detail specific host defence mechanism. 12 OR Describe in detail mycoplasma as pathogenic organism. 12
  6. Describe in detail working and applications of UV-VIS spectrophotometer. 12 OR Discuss biotechnologically important radioactive isotopes. 12

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