Virus And Bacteria Quiz 40 (20 MCQs)

Quiz Instructions

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1. Bacteria cells are lacking a

Correct Answer: A) Nucleus.

2. What is defined as " A group of similar species? "

Correct Answer: A) Genus.

3. What is the process by which a bacteria cell replicates its DNA and divides in half?

Correct Answer: B) Binary Fission.

4. Bacteria come in all of the following shapes EXCEPT which?

Correct Answer: C) Rectangular.

5. A virus is made of

Correct Answer: D) Both of these.

6. Which pathogen needs a host cell to reproduce?

Correct Answer: A) Virus.

7. ..... is when every member of a species has died.

Correct Answer: B) Extinction.

8. Conjugation

Correct Answer: A) Increases genetic variation.

9. A way to prevent viruses where a weakened pathogen is introduced to the body is a(n)

Correct Answer: D) Vaccine.

10. Which BEST describes the treatment of a bacterial infection?

Correct Answer: B) Antibiotics.

11. Which of the following move using a whiplike structure?

Correct Answer: C) Flagellate.

12. What do you need to be able to see bacteria?

Correct Answer: A) Microscope.

13. Antibiotics only work against what organisms?

Correct Answer: B) Bacteria.

14. Organisms such as fungi return chemicals to the soil and the atmosphere and are called .....

Correct Answer: B) Decomposers.

15. This type of medicine only kills bacteria cells

Correct Answer: C) Antibiotics.

16. Similar genes are evidence of .....

Correct Answer: B) Common ancestory.

17. The region inside the cell membrane of a bacterium

Correct Answer: C) Cytoplasm.

18. What do viruses and bacteria have in common?

Correct Answer: D) Genetic material.

19. Which is the easiest way for a person to prevent microbial infections?

Correct Answer: D) Wash hands frequently with hot water and soap.

20. Antibiotics are used to-

Correct Answer: B) Kill a bacteria that infects an organism.