AP Biologymediummcq1 pt
Which product of the Krebs cycle carries electrons to the electron transport chain?
A.NADH and FADH₂
B.CO₂
C.ATP
D.Acetyl-CoA
Explanation
Core Concept
NADH and FADH2 are important energy-carrying products of the citric acid cycle because they deliver high-energy electrons to the respiratory electron-transport chain. The cycle also releases CO2 and produces a small amount of GTP or ATP by substrate-level phosphorylation. Calling the electron carriers the cycle's only or 'real' output is unnecessary.
Correct Answer
ANADH and FADH₂
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