Virus And Bacteria Quiz 23 (20 MCQs)

Quiz Instructions

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1. Which of the following plant diseases is caused by bacteria?

Correct Answer: D) Tundu disease of wheat.

2. Viruses contain nucleic acids and

Correct Answer: A) Protein.

3. What is the largest group of living things?

Correct Answer: B) Kingdom.

4. An organism whose cells lack a nucleus

Correct Answer: C) Prokaryote.

5. Prokaryotes are cells which DO NOT contain a

Correct Answer: A) Nucleus.

6. All living things .....

Correct Answer: D) Grow.

7. Which type of virus has a high mutation rate?

Correct Answer: B) RNA virus.

8. Which treatment is the most effective against viruses?

Correct Answer: D) Vaccines.

9. Are considered to be living organisms

Correct Answer: B) Bacteria.

10. What are pathogens?

Correct Answer: B) Disease causing agents.

11. Living cell that is "taken over" by a virus. The virus uses this cell to actively replicate (copy itself).

Correct Answer: C) Host Cell.

12. Bacteria that are decomposers .....

Correct Answer: C) Feed on dead organisms.

13. When a virus enters a cell and it immediately makes copies of itself this is called .....

Correct Answer: C) Replication.

14. Algae is classified in what protist group?

Correct Answer: A) Plant like.

15. Which of the following only applies to viruses?

Correct Answer: B) Requires a host cell to replicate.

16. What shape is a bacteria with coccus in the name?

Correct Answer: C) Sphere.

17. Cell in which a virus reproduces

Correct Answer: B) Host cell.

18. An organism with only one cell is called .....

Correct Answer: C) Single-celled.

19. Conjugation occurs when .....

Correct Answer: C) A plasmid is transferred from one bacteria to another.

20. Antibodies .....

Correct Answer: D) Destroy particular viruses and bacteria.