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TCA Cycle - Medical Science

Q1:

The end product of glycolysis is pyruvate, which enters the citric acid cycle after being converted to

A acetic acid

B acetyl-CoA

C acetaldehyde

D none of these

ANS:B - acetyl-CoA

The end product of glycolysis, ie Pyruvate is undergo oxidative decarboxylation to form 2C Acetyl CoA by the enzyme pyruvate dehydrogenase.

This acetyl CoA enters into the TCA cycle by condensation with Oxaloacetate to form Citrate by the enzyme citrate synthase.