Thyroxine Is a Competitive Inhibitor of Malate Dehydrogenase

question 50

Multiple Choice

Thyroxine is a competitive inhibitor of malate dehydrogenase. If thyroxine is added to a mitochondrial preparation that is oxidizing pyruvate as a substrate, which compound would you expect to decrease in concentration FIRST?

• A) citrate
• B) fumarate
• C) oxaloacetate
• D) pyruvate
• E) malate

Understand the concept of suprainfection and its clinical significance.

Demonstrate knowledge of appropriate hand hygiene practices.

Identify the correct use of protective apparel in infection prevention.

Understand the body's immune response following vaccination.

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