Virus And Bacteria Quiz 20 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Are considered to be non-living organisms

Correct Answer: A) Viruses.

2. Cyanophytes are an example of

Correct Answer: B) Monerans.

3. Which of the following processes brings about an exchange of genetic information between bacterial cells?

Correct Answer: C) Conjugation.

4. A/an ..... is made of genetic material and a protien coat.

Correct Answer: B) Virus.

5. All of the following diseases are caused by virus except.

Correct Answer: C) Typhoid.

6. What do viruses have inside the capsid?

Correct Answer: A) Nucleic Acid.

7. Bacteria are classified as prokaryotes because they are missing

Correct Answer: C) A nucleus.

8. Bacteria can be helpful by .....

Correct Answer: D) All of these.

9. Bacteria that survive in extreme environments belong to which kingdom?

Correct Answer: D) Kingdom Archaebacteria.

10. A bacteria cell takes up a segment of naked DNA.

Correct Answer: C) Transformation.

11. How do fungi reproduce?

Correct Answer: A) They release spores.

12. Which Fungus is used to make antibiotics?

Correct Answer: B) Penicillium.

13. What is the role played by non-pathogenic bacteria?

Correct Answer: B) They do not cause diseases.

14. Which of the following has the correct sequence for the Lytic cycle?

Correct Answer: C) Attach, Inject, Replicate, Assembly, Lysis.

15. Cells do which of the following?

Correct Answer: D) All of the above.

16. Viruses are difficult to treat because they

Correct Answer: B) Are constantly mutating.

17. Some bacteria move by using a long, whip-like structures called:

Correct Answer: D) Flagella.

18. The more classification groups that two organisms have in common

Correct Answer: A) The more alike they are.

19. HAve active reproduction through a lytic cycle

Correct Answer: A) Virus.

20. Why are viruses considered to be nonliving organisms?

Correct Answer: D) They are not able to reproduce without a host cell.