Question

The correct sequence of electron acceptor in ATP synthesis is (a) Cyt. b, c, a3, a...

The correct sequence of electron acceptor in ATP synthesis is

(a) Cyt. b, c, a3, a

(b) Cyt. c, b, a, a3

(c) Cyt. o, a, b, c

(d) Cyt. b, c, a, a3.

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Answer #1

Answer-d) Cyt b,c,a, a3.

The electron moves in the different electron transport complexes called as the cytochromes in the membrane of the mitochondria which helps in the formation of ATP by the process of oxidative phosphorylation. The sequence of the movement of the electrons include cytochromes b, cytochrome c, cytochrome a, and cytochrome a3. The ATP molecule is formed by the pumping of the hydrogen ions across the F0-F1 pump in the membrane of the mitochondria . ATP is essential for the functioning of the metabolic processes inside the cell. Hence, option (d) is correct.

The sequences of the transport of electrons mentioned in options (a), (b) and (c) are incorrect. The cytochrome o is not available in the electron transport chain for the formation of ATP inside the mitochondria membrane by using the F0-F1 ATP complex with the use of the enzyme F0-F1 ATP synthase.

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