Question

Carbon fixation involves the addition of carbon dioxide to _____:

a) Glucose
b) Water
c) Ribulose bisphosphate (RuBP)
d) Oxygen

Answer 1

Carbon fixation involves the addition of carbon dioxide to Ribulose bisphosphate (RuBP) through the enzyme rubisco.

Step-by-step explanation:

Carbon fixation involves the addition of carbon dioxide to Ribulose bisphosphate (RuBP). This process is catalyzed by the enzyme ribulose bisphosphate carboxylase (rubisco). The resulting compound rapidly breaks down to form two molecules of a three-carbon compound called phosphoglycerate (PGA).