Which of the following statements are true about oxidative phosphorylation

Question 1

Question 2

Which Of The Following Statements Is INCORRECT Concerning Oxidative Phosphorylation?

Answer question 1

Answer: Correct option is (B) statement 1 and 2.

Oxidative phosphorylation is the process of generation of ATP molecules. The process takes place in the inner membrane of the mitochondria.

The given question asks to find out the correct statements regarding the oxidative phosphorylation. The given answer states the correct statements are 2, 3 and 4. The fourth statement is incorrect. This is because out of the four complexes in the inner mitochondrial membrane, only the three carriers (I, III and IV) are involved in the transporting protons into the mitochondrial intermembrane space during electron transport.

Statement 1 also stands true as it states that electron transport provides energy to pump protons into the mitochondrial intermembrane space. The transport of electrons from NADH and FADH2 provides energy for transport of protons.

Answer question 2

1. Option D is correct.
Molecular oxygen is the terminal electron acceptor in the oxidative phosphorylation.

2. Option A is correct.
Acetyl CoA is formed in the mitochondrial matrix.

3. Option E is correct.
Cyanide inhibits cytochrome c oxidase. So, no ATP is produced.

4. Option A is correct.
Enzyme concentration does not affect dG of a reaction.

5. Option E is correct.
Glycolysis is universal. It is found in prokaryotes and eukaryotes. It is found in both aerobic and anaerobic organisms.

6. Option D is correct.
Phosphofructokinase inhibited by ATP.

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