The Enzyme That Converts Pyruvate into Acetyl-CoA Requires Vitamin B

question 36

Multiple Choice

The enzyme that converts pyruvate into acetyl-CoA requires vitamin B ₁, also called thiamine. Vitamin B ₁ has to be obtained through the diet. At what phase would cellular respiration come to a halt without B ₁?

• A) Glycolysis
• B) Preparatory reaction
• C) Citric acid cycle
• D) Electron transport chain
• E) Carbon fixation

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