Which of the following statements regarding the enzyme rubisco is correct?
A)It releases 2 molecules of glyceraldehyde-3-phosphate as products.
B)Ribulose-1,5-bisphosphate is the substrate and carbon dioxide is the product.
C)Its catalytic site has both carboxylase and oxygenase activity.
D)It is the least abundant enzyme in plants.

Question

Quizplus · Accepted Answer

Rubisco is a key enzyme involved in carbon fixation during the process of photosynthesis. Its catalytic site has both carboxylase and oxygenase activity, which means it can either fix carbon dioxide or promote photorespiration depending on conditions like the availability of oxygen. Option A is incorrect because the enzyme does not release 2 molecules of glyceraldehyde-3-phosphate as products. Option B is incorrect because ribulose-1,5-bisphosphate is the substrate, not the product, of rubisco. Option D is incorrect because rubisco is actually one of the most abundant enzymes in plants.

Which of the Following Statements Regarding the Enzyme Rubisco Is