Multiple Choice
Each of the following describes the pyruvate oxidation reaction except that _____________________.
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3. Energy & Cell Processes
Pyruvate Oxidation
Multiple Choice
What product of pyruvate oxidation enters the Krebs cycle?
A
Acetyl-CoA
B
ATP
C
Lactic acid
D
NADH
Verified step by step guidance1
Understand the process of pyruvate oxidation: Pyruvate, a product of glycolysis, is transported into the mitochondria where it undergoes oxidative decarboxylation.
Identify the enzyme complex involved: The pyruvate dehydrogenase complex catalyzes the conversion of pyruvate into acetyl-CoA.
Recognize the products of pyruvate oxidation: During this process, pyruvate is converted into acetyl-CoA, and NAD+ is reduced to NADH, while CO2 is released as a byproduct.
Determine the role of acetyl-CoA: Acetyl-CoA is the molecule that enters the Krebs cycle (also known as the citric acid cycle or TCA cycle) to be further oxidized for energy production.
Clarify the function of the Krebs cycle: The Krebs cycle processes acetyl-CoA to produce ATP, NADH, and FADH2, which are crucial for cellular respiration and energy production.
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