Q. In $C_{3}$ cycle for the fixation of every $CO_{2}$ molecules, the reduction and regeneration steps required
A) 3 ATP and 2 $NADPH_{2}$
B) 2 ATP and 2 $NADPH_{2}$
C) 2 ATP and 3 $NADPH_{2}$
D) 3 ATP and 3 $NADPH_{2}$
Explanation
For every $CO_{2}$ molecule entering the Calvin cycle (the reduction and regeneration steps), three molecules of ATP and two molecules of NADPH+$H^{+}$ are required.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.