Question Detail

MIC 121 Introduction what are microbes Objective Question

Question

By what primary mechanism does dry heat sterilization in a hot air oven destroy microorganisms?
Options
A Protein denaturation
B Cell wall lysis
C Oxidizing molecules
Correct Answer
D Desiccation
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 24 explains: 'Dry heat does most of the damage by oxidizing molecules. The essential cell constituents are destroyed and the organism dies.'

Hint

Look for the specific chemical process mentioned in the principle of a hot air oven.

Question Info