Question

through which conversion is energy released? adp to atp atp to adp nadp+ to nadph co2 and h2o to c6h12o6 and o2

Explanation:

ATP (adenosine - triphosphate) has high - energy phosphate bonds. When ATP is hydrolyzed to ADP (adenosine - diphosphate) and inorganic phosphate, energy is released. The conversion from ADP to ATP requires energy input. The conversion from $NADP^+$ to NADPH during the light - dependent reactions of photosynthesis stores energy. The conversion of $CO_2$ and $H_2O$ to $C_6H_{12}O_6$ and $O_2$ in photosynthesis also stores energy.

Answer:

B. ATP to ADP