Multiple Choice
Which one of the following is formed as pyruvate is converted to acetyl CoA during pyruvate oxidation?
3. Energy & Cell Processes
Pyruvate Oxidation
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Which of the following events accompanies the conversion of pyruvate to acetyl CoA before the citric acid cycle?
A
Formation of CO2 and synthesis of ATP
B
Release of CO2 and release of coenzyme A
C
Removal of coenzyme A
D
Regeneration of NAD+
E
Release of CO2 and synthesis of NADH
Verified step by step guidance1
Understand the context: Pyruvate conversion to acetyl CoA is a crucial step in cellular respiration, linking glycolysis to the citric acid cycle.
Identify the key components involved: Pyruvate, acetyl CoA, CO2, NAD+, and NADH are involved in this conversion process.
Recognize the chemical reaction: Pyruvate undergoes oxidative decarboxylation, where it loses a carbon atom in the form of CO2.
Consider the role of NAD+: During this conversion, NAD+ is reduced to NADH, capturing high-energy electrons.
Conclude the process: The conversion results in the release of CO2 and the formation of acetyl CoA, with NADH being synthesized, not ATP.
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