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The TCA cycle starts with the condensation of which of the following compounds?

ASucrose

BAcetyl group

CEthanol

DPyruvate

Answer:

B. Acetyl group

Read Explanation:

  • The TCA cycle starts with the condensation of acetyl group.

  • It reacts with oxaloacetic acid and water and forms citric acid.

  • This reaction is catalysed by the enzyme citrate synthase and a molecule of CoA is released.

  • Further, citrate is isomerised to isocitrate with the help of isomerase enzyme.

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