Multiple choice

The enzyme that fixes the atmospheric carbon dioxide in the C4 plants is __________________.

  1. RuBP Carboxylase

  2. RuBP Oxygenase

  3. PEP carboxylase

  4. Glyceraldehyde-3-phosphate Dehydrogenase

  5. Phosphoglycerate kinase

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

PEP carboxylase catalyzes the carbon dioxide fixation in the C4 cycle to yield the 4-carbon compound oxaloacetate.