Question

TCA cycle involves inter-conversion of carbohydrate molecules. Which of the following process takes place only once during the completion of one cycle? A. Isomerism B. Reduction C. Oxidation D. Decarboxylation​

Answer 1

TCA cycle involves inter-conversion of carbohydrate molecules.

A). Isomerism

TCA cycle or tricarboxylic acid cycle is also known as citric acid cycle.

• It involves the oxidation of acetyl CO-A to CO2 & H2O
• The only irreversible reaction of this cycle is conversion of citrate to iso-citrate occurs enzyme responsible for this reaction is aconitase
• This is 2 step reaction with intermediate Cis-aconiate

So the correct answer is option A that is isomerism.

Answer 2

Answer:

isomerization

Explanation: