Question

question 6
the role of rubisco in photosynthesis is to:
produce nadph
avoid photorespiration
fix carbon dioxide to rubp
reduce g3p to 3pg
capture solar energy

Explanation:

Rubisco (Ribulose - 1,5 - bisphosphate carboxylase/oxygenase) is an enzyme. In the Calvin cycle of photosynthesis, its main role is to catalyze the carboxylation of ribulose - 1,5 - bisphosphate (RuBP) with carbon dioxide. This is the first step of carbon fixation in the Calvin cycle.

• Producing NADPH occurs in the light - dependent reactions of photosynthesis, not by rubisco.
• Avoiding photorespiration is a function of C4 and CAM plants' adaptations (e.g., spatial separation in C4 plants), not the direct role of rubisco. Rubisco can actually participate in photorespiration when oxygen concentration is high.
• The conversion of G3P (glyceraldehyde - 3 - phosphate) to 3PG (3 - phosphoglycerate) is not a reaction catalyzed by rubisco.
• Capturing solar energy is done by pigments like chlorophyll in the light - harvesting complexes of the thylakoid membranes, not by rubisco.

Answer:

fix carbon dioxide to RuBP