Question Detail

MIC 121 Introduction what are microbes Objective Question

Question

Deep freezers preserve substances based on the principle that:
Options
A Low temperatures denature all microbial proteins.
B Low temperatures cause rapid cell lysis in most microorganisms.
C Minimum microbial growth occurs at extremely low temperatures.
Correct Answer
D Freezing instantly kills all microorganisms.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 35 states: 'Deep freezers are based on the principle that under extremely low temperatures, there is minimum microbial growth which allows for the protection and preservation of different substances.'

Hint

Think about how very low temperatures affect microbial activity and growth.

Question Info