Unit 3 | Microbiology

Question 1

All microbes are pathogens.

Answer 1

false

Question 2

Virulence factors

Answer 2

features of a pathogen enable it to cause disease

Question 3

What are the three domains of life?

Answer 3

Bacteria, archaea, and eukarya

Question 4

infectivity

Answer 4

The ability of a microorganism to infect the host

Question 5

Susceptibles

Answer 5

hosts who do not have immunity to an infectious agent.

Question 6

Colonization

Answer 6

the coexistence of microorganisms on body surfaces that does not lead to disease.

Question 7

Pathogenicity

Answer 7

the ability of a microorganism to cause disease in the host.

Question 8

Pandemic

Answer 8

worldwide epidemic

Question 9

Anthrax

Answer 9

bacterial infectious disease where the elaboration of a toxin by the bacteria causes tissue damage.

Question 10

Tuberculosis

Answer 10

bacterial infection where an over-reaction of the body’s immune system is primarily responsible for tissue damage.

Question 11

Hepatitis B

Answer 11

viral infection where the direct invasion of a virus into cells and tissues causes cell damage and disease.

Question 12

Which level of identification is most useful for epidemiologic investigations?

Answer 12

Strain