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MIC 121 Introduction what are microbes Objective Question
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Question

What are Thermal Death Point (TDP) and Thermal Death Time (TDT) in the context of hot air oven sterilization?
Options
A TDP is the highest temperature at which microorganisms survive; TDT is the maximum time for sterilization.
B TDP is the time required to reach sterilization temperature; TDT is the duration at that temperature.
C TDP is the lowest temperature to kill all microorganisms in a specific time; TDT is the minimum time to kill all microorganisms at a specific temperature.
Correct Answer
D TDP and TDT are terms used interchangeably to describe sterilization efficiency.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 23, under 'HOT AIR OVEN CONT'D', defines: 'The thermal death point is the lowest temperature required to kill all the microorganisms when applied for a specific time period.' and 'Thermal death time (TDT) is the minimum time taken to kill all the microorganisms at a specific temperature.'

Hint

Look for the definitions of TDP and TDT in the 'Hot Air Oven Cont'd' section.

Question Info

Course: MIC 121
Topic: Introduction what are microbes
Type: Objective
Difficulty: Not specified
Question 643 of 984
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