Virus And Bacteria Quiz 3 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Which of these is a plant virus?

Correct Answer: A) Tobacco mosaic virus.

2. Bacteria are microscopic and

Correct Answer: B) Unicellular.

3. Nitrogen fixation:

Correct Answer: D) Changes nitrogen gas into a usable form for some plants.

4. Viruses are made of

Correct Answer: B) Nucleic Acids and Proteins.

5. The science of Taxonomy is

Correct Answer: B) The classification and naming of organisms and placing them in a hierarchical order.

6. The cycle of virus reproduction is called

Correct Answer: B) Lytic cycle.

7. What do viruses have in common with your body's cells?

Correct Answer: C) They contain DNA or RNA.

8. Define germs

Correct Answer: A) Tiny organisms, or living things, that can cause disease.

9. A host is .....

Correct Answer: B) A living thing.

10. BONUS QUESTION:There are certain kinds of radioactive bacteria, they can be responsible for .....

Correct Answer: C) Cancer.

11. Contain a nucleoid region made up of DNA

Correct Answer: B) Bacteria.

12. A ..... requires oxygen to live.

Correct Answer: A) Obligate Aerobe.

13. A mixture containing material from one or more deactivated pathogens, such as viruses, is called .....

Correct Answer: A) A vaccine.

14. Nonliving particle that can reproduce within a living cell

Correct Answer: B) Virus.

15. The classification system is written in what language?

Correct Answer: C) Latin.

16. What cell organelle makes energy?

Correct Answer: B) Mitochondria.

17. Which term best describes a virus?

Correct Answer: B) Nonliving.

18. ..... is when one bacteria cell reproduces by division in half to become two cells.

Correct Answer: B) Binary fission.

19. The leaf blight of paddy is caused by.

Correct Answer: A) Bacteria.

20. Which of the following is NOT a reason that we use scientific names?

Correct Answer: D) To sound smart.