Microbiology MCQ on Characteristics of Microorganisms

By
MN Editors

IN THIS BIOLOGY NOTE

Microbiology MCQ on Characteristics of Microorganisms

1. Which one we use for the examination of microbial cells?

a) High-power microscope
b) Low-power microscope
c) High-power microscope at a magnification of about 1,000 diameters
d) Low-power microscope at a magnification of about 1,000 diameters

2. Which organisms contain Lipopolysaccharide in cell walls?

a) Gram-positive bacteria
b) Gram-negative bacteria
c) Fungi
d) Algae

3. Which microorganism(s) among the following perform photosynthesis by utilizing light?

a) Cyanobacteria
b) Fungi
c) Viruses
d) Cyanobacteria, Fungi and Viruses

4. Bdellovibrios come under which group of microorganisms?

a) Viruses
b) Bacteria
c) Fungi
d) Algae

5. Plamids are circular DNA molecules capable of autonomous replication.

a) True
b) False

6. The DNA of Klebsiella pneumonia has a moles % G+C content of?

a) 70-71
b) 50-53
c) 56-58
d) 32-35

7. The DNA molecule of microorganisms is made up of base pairs of ____

a) guanine-cytosine
b) adenine-thymine
c) adenine-cytosine
d) guanine-cytosine and adenine-thymine

8. What are the blood serum proteins produced by animals called?

a) Enzymes
b) Antibodies
c) Amino acids
d) Toxins

9. Which among the following are produced by microorganisms?

a) Fermented dairy products
b) Breads
c) Alcoholic beverages
d) Fermented dairy products, breads and alcoholic beverages

10. Growth of microbes in a solid media is identified by the formation of?

a) pellicle at the top of media
b) colonies
c) sediment at the bottom
d) turbidity

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