Question

3. Which is true about the light-independent reactions?

Answer 1

Energy taken from ATP and NADPH is used to make energy-rich carbohydrates.The light-independent reactions are reactions in which ATP and NADPH is used for the conversion of carbon dioxide into energy-rich carbohydrates. So, the carbohydrates are produced and not used up as stated in choice B. Carbon dioxide is neither broken off of molecules with three carbons nor were used up in the light-dependent reactions, leaving choices a. and b. as wrong ones.