Ncert Exercises & Solutions

$3CO 2 + 9 A T P + 6 N A D P H +$ water $⟶$ Glyceraldehyde 3-phosphate $+ 9 A D P + 6 N A D P + + 8 P i$

Analyse the above reaction and answer the following questions

1. How many molecules of ATP and NADPH are required to fix one molecule of CO₂ ?

2. Where in the chloroplast does this process occur?

(a) 2 molecules of ATP for phosphorylation and two molecules of NADPH for reduction are required per

CO 2

molecule fixed.

(b) The calvin cycle occurs in the stroma of the chloroplast.