Question Detail

MIC 121 Introduction what are microbes Objective Question
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Question

According to the document, what is the primary mechanism by which dry heat ovens sterilize items?
Options
A By denaturing proteins through moist heat
B By oxidizing molecules and destroying essential cell constituents
Correct Answer
C By using high-pressure steam to kill bacteria and spores
D By removing water content through desiccation
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 24, under 'PRINCIPLE OF HOT AIR OVEN', states: 'Dry heat does most of the damage by oxidizing molecules. The essential cell constituents are destroyed and the organism dies.'

Hint

Refer to the section describing the 'Principle of Hot Air Oven' and how dry heat achieves sterilization.

Question Info

Course: MIC 121
Topic: Introduction what are microbes
Type: Objective
Difficulty: Not specified
Question 642 of 984
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