Question

Select the correct statement -

• A. When ATP is synthesised directly from metabolites, it is substrate level phosphorylation.
• B. In Krebs' cycle, citrate undergoes 2 decarboxylations and 4 dehydrogenations.
• C. Krebs' cycle is an amphibolic process
• D. All of these

Answer 1

Answer: (D)

All of these

The term substrate-level phosphorylation refers to the synthesis of ATP by reactions in which ADP is one of several substrates and ATP is one of several products of an enzyme-catalyzed reaction. In the example below, the substrates are phosphoenolpyruvate and ADP. Each acetyl coenzyme A proceeded once through the citric acid cycle. Therefore, in total, it created 6 $NADH$ + $H^{+}$ molecules, two $FAD{H}_2$ molecules, four carbon dioxide molecules, and two ATP molecules. In Krebs' cycle, citrate undergoes 2 decarboxylations and 4 dehydrogenations. Kreb cycle is an amphibolicpathway. It serves in both catabolic and anabolic processes.The Kerbs cycle or citric acid cycleis a series of reactions that degrades acetyl CoA to yield carbon dioxide, and energy, which is used to produce $NADH$, $H^{+}$ and $FADH$.

Thus, the correct answers is 'All of the above'.