Multiple Choice

0.5 points

Question at position 6

Thioglycolate is important for the elimination of what substance in media?

Sulfur

Oxygen

Iron

Carbon Dioxide

Question at position 7

7

Multiple Choice

0.5 points

Question at position 7

Why are foods primarily refrigerated?

Things taste better cold.

To prevent the degradation of protein.

It inhibits microbial growth

To promote the growth of beneficial bacteria.

Question at position 8

8

Multiple Choice

0.5 points

Question at position 8

What is a microbial heat control method?

Filtration

Autoclave

Halogens

Ionizing radiation

Question at position 9

9

Multiple Choice

0.5 points

Question at position 9

The oncogenic viruses, human T-Lymphotropic viruses, are contracted primarily through _________________________.

food contamination

breast milk, sexual contact, and blood contact

respiratory droplets

contact (touch)

Question at position 10

10

Multiple Choice

0.5 points

Question at position 10

Which isTRUE about prions?

They primarily target the liver.

They are a special class of bacteria.

They do not contain genetic material.

They are very common in the US.

Question at position 11

11

Multiple Choice

0.5 points

Question at position 11

An obligate aerobe ________________.

cannot tolerate oxygen.

can handle small amounts of oxygen.

will die unless an abundant amount of oxygen is available.

can handle any amount of oxygen, but does not use any of it.

Question at position 12

12

True or False

0.5 points

Question at position 12

Triclosan is perfectly safe and non-controversial.

True

False

Question at position 13

13

Multiple Choice

0.5 points

Question at position 13

What is host range?

The number of species a microbe can infect.

How long a host is typically infected with a microbe without symptoms.

The geographic range of a microbe.

The region of the host can be infected.

Question at position 14

14

Multiple Choice

0.5 points

Question at position 14

Acidophiles prefer a pH of ______________.

1 to 5

5 to 8

1 to 14

9 to 11

Question at position 15

15

Multiple Choice

0.5 points

Question at position 15

Persistent infections can be classified as _______________.

chronic

latent

acute

chronic or latent

Question at position 16

16

Multiple Choice

0.5 points

Question at position 16

What does the incorporation of a viral genome directly into bacterial host genome create?

A felonious virus

An amateur phage

A viral spy

A prophage

Question at position 17

17

Multiple Choice

0.5 points

Question at position 17

What isTRUEabout an accidental stick of an HIV contaminated needle in a healthcare worker?

If the worker quickly sucks out the virions with their mouth, an infection may not occur.

The worker will likely have to change professions.

The worker shouldn't tell anyone.

The first 72 hours after infection provide the opportunity to undergo PEP.

Question at position 18

18

Multiple Choice

0.5 points

Question at position 18

What is critical equipment?

Equipment that comes into contact with mucus membranes.

Things like stethoscopes and blood pressure cuffs.

Equipment that comes into contact with sterile body sites or the vascular system.

Any equipment that touches the patient.

Question at position 19

19

Multiple Choice

0.5 points

Question at position 19

When attempting to grow a virus in a laboratory, what is the most important factor for the success of a plaque assay?

The host cell can grow in plate format.

The length of incubation time.

The virus must bud and not lyse the host cell.

Making sure only a small amount of virions are used in the initial inoculum.

Question at position 20

20

Multiple Choice

0.5 points

Question at position 20

Which of the following isTRUEabout zika?

Ticks transmit it from monkeys to humans.

It is an example of a viral disease.

Macrocephaly is a common sign in adult men that are infected.

It was discovered in Somalia.