Dry heat destroys microorganisms by_____________?
Correct answer: B. Oxidation
- A. Lysis
- B. Oxidation
- C. Hydrolysis of DNA
- D. Coagulation of proteins
Explanation
Dry heat kills microorganisms mainly by oxidative damage to cellular components, with dehydration also contributing. Coagulation of proteins is the major mechanism of moist heat, not dry heat.
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38 free Infection Control and Sterilisation MCQs from Microbiology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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