Chapter 15: Microbe Diversification

Question 1

What is a virus?

Answer 1

A non-living infectious particle that needs a host to reproduce.

Question 2

What is a bacterium?

Answer 2

A living prokaryotic cell reproducing by binary fission.

Question 3

What is a pathogen?

Answer 3

Any disease-causing organism.

Question 4

What is a parasite?

Answer 4

Organism that lives in/on a host and harms it.

Question 5

What is HIV?

Answer 5

An RNA virus that infects helper T-cells.

Question 6

What is AIDS?

Answer 6

Condition caused by loss of immune function due to HIV.

Question 7

What is a vaccine?

Answer 7

A preparation that stimulates immune memory.

Question 8

What is antibiotic resistance?

Answer 8

Evolution of bacteria that survive antibiotic exposure.

Question 9

What is an RNA virus?

Answer 9

A virus whose genetic material is RNA (e.g., HIV, influenza).

Question 10

What is the microbiome?

Answer 10

All microorganisms living inside and on the human body.