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The enzyme that converts oxaloacetate into malic acid is

Option: 1

Malic dehydrogenase


Option: 2

Oxalophosphatase


Option: 3

Malic phosphatase


Option: 4

RuBP carboxylase


Answers (1)

best_answer

CAM Pathway -

 
  • CAM (Crassulacean Acid Metabolism) plants are found in xerophytic conditions.
  • CAM pathway is exhibited by Crassulaceae, Euphorbiaceae, Cactaceae etc. 
  • Their stomata open only during the night, fixing carbon onto different compounds and then releasing the fixed carbon into the C3 cycle during the day when plants perform photosynthesis.
  • The CO2 taken up by succulent plants at night is fixed in a similar way as it takes place in C4 plants to form malic acid, which is being stored in the vacuole.
  • These acids are decarboxylated and the CO2 released is fixed to produce PGA.

Malic dehydrogenase converts oxaloacetate into malic acid. Hence, the correct answer is option a.

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Rishi

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