Multiple Choice
Which type of plasmids confer the ability of an organism to survive treatment by antibiotics?
3. Acids and Bases
Organic Chemistry Reactions
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In the context of organic chemistry reactions, how does microbial control via moist heat differ from control via dry heat?
A
Moist heat denatures proteins more effectively than dry heat.
B
Moist heat requires higher temperatures to achieve microbial control compared to dry heat.
C
Dry heat is more effective at oxidizing organic compounds than moist heat.
D
Dry heat is faster at killing microbes due to its ability to penetrate cell walls.
Verified step by step guidance1
Understand the concept of microbial control: Microbial control refers to methods used to eliminate or reduce the presence of microorganisms, such as bacteria, viruses, and fungi, in a given environment.
Differentiate between moist heat and dry heat: Moist heat involves the use of steam or boiling water, while dry heat involves hot air or an open flame. Each method affects microorganisms differently.
Analyze the effect of moist heat: Moist heat is effective at denaturing proteins, which disrupts the structure and function of microbial cells. This process typically requires lower temperatures and shorter exposure times compared to dry heat.
Examine the effect of dry heat: Dry heat is effective at oxidizing organic compounds, which can lead to the destruction of microbial cells. It generally requires higher temperatures and longer exposure times to achieve microbial control.
Compare the penetration abilities: Dry heat can penetrate cell walls more effectively than moist heat, making it faster at killing microbes under certain conditions. However, moist heat is often preferred for its ability to denature proteins efficiently.
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