Question

Select the correct answer. Which product does the Krebs cycle require from the electron transport chain? A. ATP B. CoA C. NAD+ D. NADH E. pyruvate

Answer 1

C. NADH drop electrons off to the electron transport chain to become NAH+. This NAD+ is then required by the Kreb's Cycle to strip electrons off the carbon chain in the various steps of the Kreb's Cycle.

Answer 2

Answer:

The correct option is option C.

Which is an NAD+ molecule.

Explanation:

• Krebs cycle and electron transport chain are important steps in cellular respiration.
• In the Krebs cycle, there is a need of NAD+ molecule which is then in Krebs cycle reduced to form a NADH2 molecule.
• NADH2 is also an energy currency. It is then oxidized in the electron transport chain, giving electron in electron transport chain and return to Krebs cycle as NAD+.
• Now in the Krebs cycle, it is ready to take electrons again.