Q. Which of the following is the first compound that accepts carbon dioxide during dark phase of photosynthesis?
A) NADP
B) RuBP
C) Ferredoxin
D) Cytochrome
Explanation
Dark phase of photosynthesis of Calvin cycle takes place in the stroma of chloroplast. First step of dark phase is Carboxylation. In Carboxylation, carbon dioxide is combined with RuBP to from first stable compound. 6RuBP+6C$O_{2}\overset{RuBP\ carboxylase}{\rightarrow}12\ phosphoglyceric\ acid$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.