Question

How do ATP and NADPH connect light-dependent and light-independent reactions in photosynthesis?

-ATP and NADPH are produced in both reactions.
-ATP and NADPH are used in both reactions.
-ATP and NADPH are produced in the light-dependent reactions and used in the light-independent reactions.
-ATP and NADPH are produced in the light-independent reactions and used in the light-dependent reactions.

Answer 1

I believe it's C, made in light-dependent reactions and used in light-independent reactions.

Answer 2

ATP and NADPH are produced in the light-dependent reactions and used in the light-independent reactions.

Step-by-step explanation:

The light-dependent phase of photosynthesis includes splitting of water in the presence of sunlight and channeling of electrons into the electron transport chain (ETC) present between PS I and PS II. The proton motive force generated during transfer of electrons through ETC serves in the synthesis of ATP. The electrons reduce the NADP into NADPH.

These ATP and NADPH formed in light-dependent reactions are used during endergonic redox reactions of the Calvin cycle. Hence, ATP and NADPH are produced in the light-dependent reactions and used in the light-independent reactions.