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The specific enzyme/(s) of the glyoxylate cycle is/are

  • A.isocitrate lyase
  • B.malate synthase
  • C.both (a) and (b)
  • D.anaplerotic

Answer: C

Correct answer: both (a) and (b)

The two enzymes unique to the glyoxylate cycle are isocitrate lyase, which splits isocitrate into succinate and glyoxylate, and malate synthase, which joins glyoxylate to a second acetyl-CoA. Between them they bypass the two decarboxylation steps of the TCA cycle, which is what conserves the carbon.

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