Course

Microbiology

Study Pack

Set 4 Control Of Microorganisms

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Question 1

(Multiple Choice)

Free
Organisms that are the most resistant to heat, chemicals, and radiation are

A) parasites.
B) prions.
C) bacteria.
D) viruses.

Answer

Question 2

(Multiple Choice)

Free
If this is present on a surface to be disinfected, it can shield microorganisms from the disinfectant or inactivate the disinfectant. What is this substance?

A) Bleach (sodium hypochlorite)
B) Organic material
C) Hydrochloric acid
D) Water

Answer

Question 3

(Multiple Choice)

Free
Pasteurization achieves _____.

A) disinfection
B) sterilization
C) asepsis
D) filtration

Answer