Single Choice

What is the role of FADH$${_2}$$ and NADH in cellular respiration?

ACatalyze the breakdown of glucose to three carbon sugars
BCarry electrons to the cytochrome membrane proteins
Correct Answer
CCatalyzes the addition of a phosphate group to ADP
DAct as a final electron acceptor in the electron transport chain

Solution

Several different molecules carry high-energy electrons to the electron transport chain to generate ATP molecules. The NADH and FADH2 molecules are affixed with electrons and are transferred to the inner membrane of the mitochondria. They travel down the electron transport chain composed of protein complexes, releasing the electrons that they once had. The end result is loads of energy in the form of ATP.
Thus, the correct answer is option 'Carry electrons to the cytochrome membrane proteins'.

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