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Solution


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
1 A
2 B
3 C
4 D

Ans.

(b) 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+6CO2 

→RuBP carboxylase 12 phosphoglyceric acid