Question

Which of the following statements is correct with respect to cellular respiration?

• A. Process of glycolysis occurs in cell membrane
• B. Enzymes of TCA cycle are present in inner-mitochondrial membrane
• C. NAD+ is the final electron donor for anaerobic respiration
• D. Conversion of glucose-6-phosphate to fructose-6-phosphate is a reversible reaction

Hint:

Isomerization reactions in glycolysis are typically reversible.

Answer 1

The Correct Option is D

Step 1: Concept
Cellular respiration involves biochemical pathways including glycolysis and the Krebs cycle.
Step 2: Analysis of Options
Glycolysis occurs in the cytoplasm, not the cell membrane. Most enzymes of the TCA cycle (Krebs cycle) are in the mitochondrial matrix, while the Electron Transport System is in the inner membrane. The conversion of G6P to F6P by phosphoglucoisomerase is a reversible step in glycolysis.
Step 3: Conclusion
Statement (D) is biologically accurate.
Final Answer:(D)