Question

Which of the following types of chemical reactions does not occur in the TCA cycle?

• A. Hydrolysis
• B. Decarboxylation
• C. Phosphorylation
• D. Dephosphorylation

Hint:

Phosphorylation and decarboxylation are key steps in the TCA cycle, while dephosphorylation occurs in other metabolic pathways.

Answer 1

The Correct Option is D

The TCA cycle (Krebs cycle) involves reactions such as decarboxylation, oxidation, and phosphorylation, but dephosphorylation is not a key reaction in the cycle.