The Enzyme That Converts Pyruvic Acid into Acetyl-CoA Requires Vitamin

question 40

Multiple Choice

The enzyme that converts pyruvic acid into acetyl-CoA requires vitamin B₁, also called thiamine. Vitamin B₁ has to be taken in through the diet of an individual. At what phase would cellular respiration come to a halt without B₁?

• A) glycolysis
• B) preparatory reaction
• C) citric acid cycle
• D) electron transport chain
• E) carbon fixation

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