Q. Which of the following statements about RuBisCO is true?
A) It is active only in the dark.
B) It has higher affinity for oxygen than carbon dioxide.
C) It is an enzyme involved in the photolysis of water.
D) It catalyzes the carboxylation of RuBP.
Explanation
[Solution by Claude - not from source] RuBisCO catalyses the carboxylation of RuBP (and also oxygenation in photorespiration). It has higher affinity for $CO_2$ than $O_2$ and is not active only in the dark. Photolysis of water is done at PS II. Answer (4), as in the answer key.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.