The major enzyme that 'fixes' carbon dioxide is called
A) ribulose bisphosphate carboxylase (rubisco).
B) glyceraldehyde-3-phospate (G3P).
C) PEP carboxylase (PEPcase).
D) lactate dehydrogenase.

Question

Quizplus · Accepted Answer

Rubisco is the enzyme responsible for the fixation of carbon dioxide during the process of photosynthesis. It catalyzes the first major step in the process of carbon fixation, which is the carboxylation of ribulose-1,5-bisphosphate with carbon dioxide to form two molecules of 3-phosphoglycerate. Therefore, option A is the best choice.

The Major Enzyme That 'Fixes' Carbon Dioxide Is Called