Question

In the following dark reaction of photosynthesis, $6C{O}_2+6H_{2}O+A+12NADPH+H\to C_6{H}_{12}{O}_6+6O_2+B+18NADP$ , A and B stand for

• A. 18 ADP, 18 ATP
• B. 12 ATP, 18 ATP
• C. 18 ATP, 18 ADP
• D. 12 ATP, 12 ADP

Answer 1

The correct option is C 18 ATP, 18 ADP

In dark reaction of photosynthesis, 18 ATP molecules and 12 $NADP{H}_2$ molecules are utilized, which are produced during light reactions. Thus, A and B are 18 ATP and 18 ADP respectively.