Where can viruses replicate?

C. Within the cells of living organisms

A. In water and moist environments

B. On the surface of non-living objects

C. Within the cells of living organisms

D. In the air through aerosol transmission

Everyday Science · Cell Biology & Microorganisms · page 3 of 22

Bacteria MCQs with Answers

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Bacteria, Viruses & Microorganisms MCQs (21–30)

10 MCQs with answers and a short one-liner. Hide answers to test yourself.

Past paper MCQs in this chapter · See all past papers

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21.
The protein that forms the matrix of HIV Virus is?
Correct Answer: A. p24
One-liner
The protein that forms the matrix of HIV virus is p24, which is the major capsid protein of the virus.
22.
For growth, Viruses require _?
Correct Answer: B. Living host
One-liner
Viruses require a living host for growth and reproduction.
23.
Archaebacteria can tolerate temperature up to ?
Correct Answer: C. 120°C
One-liner
Archaebacteria can tolerate temperatures up to 120°C.
24.
Past Paper MCQ
COVID-19 is caused by?
Correct Answer: C. Virus
One-liner
COVID-19 is caused by a virus, specifically the SARS-CoV-2 coronavirus.
25.
Where can viruses replicate?
Correct Answer: C. Within the cells of living organisms
One-liner
Viruses can only replicate within the cells of living organisms because they lack the cellular machinery needed for independent reproduction.
26.
Which one of the following is an attached structure on the surface of some prokaryotic cells?
Correct Answer: A. Fimbriae
One-liner
Fimbriae are short, hair-like protein appendages found on the surface of some prokaryotic cells that help in attachment to surfaces or other cells.
27.
The cell wall of prokaryotes is composed of _?
Correct Answer: D. Peptidoglycan
One-liner
The cell wall of prokaryotes is composed of peptidoglycan, a unique polymer of sugars and amino acids.
28.
The AIDS virus is called?
Correct Answer: A. HIV
One-liner
The AIDS virus is called HIV (Human Immunodeficiency Virus).
29.
Cyanobacteria is also known as _?
Correct Answer: D. Blue green algae
One-liner
Cyanobacteria is also known as Blue green algae.
30.
Which types of organisms can be affected by coronaviruses?
Correct Answer: C. Mammals and birds
One-liner
Coronaviruses can affect mammals and birds.

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Bacteria MCQs with Answers

Bacteria, Viruses & Microorganisms MCQs (21–30)

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