E-PolyLearning

Welcome to the largest collection of MCQs on the Internet. Access and Discuss these Multiple choice questions for various competitive Exams and Interviews.
1. For the examination of microbial cells we require the use of?
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
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Answer: (c).High-power microscope at a magnification of about 1,000 diameters

2. Lipopolysaccharide in cell walls is characteristic of?
a. Gram-positive bacteria
b. Gram-negative bacteria
c. Fungi
d. Algae
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Answer: (b).Gram-negative bacteria

3. Which microorganism(s) among the following perform photosynthesis by utilizing light?
a. Cyanobacteria
b. Fungi
c. Viruses
d. Cyanobacteria, Fungi and Viruses
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Answer: (a).Cyanobacteria

4. 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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Answer: (b).colonies

5. 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
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Answer: (d).Fermented dairy products, breads and alcoholic beverages

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