Biology: Viruses

Test Quiz

Questions on this quiz are based on information from
Biology: Viruses.

1. What are viruses made of?
a. Fat molecules
b. Bacteria
c. Mutated blood cells
d. Genetic materials like DNA
e. Large cells with a nucleus

2. What is the outside protective coating of a virus made of?
a. Lipids
b. Carbohydrates
c. Protein
d. Carbon
e. Fat molecules

3. What reason do scientists give for saying that viruses are not living organisms?
a. They cannot reproduce without the aid of a host
b. They do not metabolize food into energy
c. They do not have organized cells
d. All of the above
e. None of the Above

4. Which of the following is a characteristic of viruses?
a. They typically have one or two strands of DNA or RNA
b. They have a cell nucleus
c. They have an organized cell structure
d. They are active when outside a living cell
e. All of the Above

5. What do viruses do once they invade a living cell of a host?
a. They die
b. They multiply
c. They are metabolized into sugar
d. All of the above
e. None of the Above

6. Which of the following is a disease caused by a virus?
a. Influenza
b. The common cold
c. Measles
d. Yellow fever
e. All of the Above

7. Which of the following is NOT a way to avoid catching a virus?
a. Wash your hands
b. Don't put your fingers in your mouth
c. Eat raw meat
d. Take vitamins
e. Get plenty of sleep

8. What is the main human defense against viruses?
a. Pills
b. Tylenol
c. Medicine
d. Immune system
e. Shots

9. True or False: Most viruses are so small that they can't be seen with an optical microscope.

10. What are viruses that contain RNA instead of DNA sometimes called?
a. Vaccines
b. Proteins
c. Capsids
d. Bacteria
e. Retroviruses

About this quiz: All the questions on this quiz are based on information that can be found on the Biology: Viruses page at

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