Question

The TCA cycle is an oxidative pathway requiring oxygen for operation. The enzyme which consume oxygen during the operation of the cycle is ______.

Options

• α - ketoglutarate dehydrogenase

• isocitrate dehydrogenase

• acnoitase

• None of the above

Answer 1

None of the above

Explanation:

For carbohydrates, proteins, and fats, the Krebs cycle, TCA cycle, or citric acid cycle serves as a common metabolic (oxidative) process. Numerous tricarboxylic acids with a 3-COOH group are produced during the TCA cycle. Dehydrogenation takes place during four oxidation steps and is aided by numerous enzymes including citrate, aconitase, and isocitrate dehydrogenase. However, none of the enzymes involved in the cycle use oxygen while it is happening. In ETC, it is primarily consumed.