What are the end products of the light-dependent reactions that need the presence of light to occur?

a. atp and nadph b. oxygen, adp, nadp+ c. phosphorus, sugar, adp d. carbon dioxide, nitrogen, atp

A

Explanation:

The light energy from sunlight in photosynthesis is used to split the water molecule into H+ and O2-. The H+ is then used to reduce NADP+ to NADPH.  Through photophosphorylation, the energy from the sun is also used to make ATP from ADP. As the electrons are passed from one protein to the other in the chain, the energy released is what is used to create ATP.

Oxygen is evolved out as a byproduct

NADP+ + 2e- + 2H+  -->  NADPH + H+

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