Multiple Choice
Which statement about keratinase in dermatophyte infections is most accurate?
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6. Enzymes and Enzyme Kinetics
Enzymes
Multiple Choice
Which liver enzyme is primarily responsible for metabolizing ethanol (alcohol) in humans?
A
Alcohol dehydrogenase (ADH)
B
Glucose-6-phosphatase
C
DNA polymerase
D
Acetylcholinesterase
Verified step by step guidance1
Identify the main function of each enzyme listed: Glucose-6-phosphatase is involved in glucose metabolism, DNA polymerase is responsible for DNA replication, and Acetylcholinesterase breaks down the neurotransmitter acetylcholine.
Recall that ethanol metabolism primarily occurs in the liver and involves enzymes that convert ethanol into acetaldehyde.
Recognize that Alcohol dehydrogenase (ADH) is the key enzyme in the liver that catalyzes the oxidation of ethanol to acetaldehyde.
Understand that this step is the first and rate-limiting step in ethanol metabolism, making ADH the primary enzyme responsible.
Conclude that among the options given, Alcohol dehydrogenase (ADH) is the correct enzyme responsible for metabolizing ethanol in humans.
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