Suppose an individual lacked an enzyme necessary for proper functioning of Complex II and, as a result, significant energy was lost during electron transfer to this portion of the electron transport chain. Which of the following describes the mostly likely pattern of ATP production from mitochondrial electron carriers in this individual? A. Mitochondrial NADH generates 1 ATP per molecule, while mitochondrial FADH2 generates 1.5 ATP per molecule. B. Mitochondrial NADH generates 2.5 ATP per molecule, while mitochondrial FADH2 generates 0.5 ATP per molecule. C. Mitochondrial NADH generates 1 ATP per molecule, while mitochondrial FADH2 generates 0.5 ATP per molecule. D. Mitochondrial NADH generates 2.5 ATP per molecule while mitochondrial FADH2 generates 1.5 ATP per molecule.

Question

Biology

Cassius Hines

7 October, 20:37

Suppose an individual lacked an enzyme necessary for proper functioning of Complex II and, as a result, significant energy was lost during electron transfer to this portion of the electron transport chain. Which of the following describes the mostly likely pattern of ATP production from mitochondrial electron carriers in this individual? A. Mitochondrial NADH generates 1 ATP per molecule, while mitochondrial FADH2 generates 1.5 ATP per molecule. B. Mitochondrial NADH generates 2.5 ATP per molecule, while mitochondrial FADH2 generates 0.5 ATP per molecule. C. Mitochondrial NADH generates 1 ATP per molecule, while mitochondrial FADH2 generates 0.5 ATP per molecule. D. Mitochondrial NADH generates 2.5 ATP per molecule while mitochondrial FADH2 generates 1.5 ATP per molecule.

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Answers (1)

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Amina Davenport · Answer 1

Option (B).

Explanation:

Electron transport chain may be defined as the process of transfer of protons from donor to the acceptor moleculae via the series of the complex reaction. 2.5 ATP molecules are produced from NADH and 1.5 genereates by the FADH2 mlecule in the electron transport chain.

The complex II enzymes are not functioning properly in the electron transport chain. The 2.5 ATP are produced from NADH but only 0.5 ATP are produced from FADH2 due to the lack of the enzyme activity of complex II.

Thus, the correct answer answer is option (B).