the diagram summarizes the light - dependent reactions of photosynthesis. what is the input of the light…

the diagram summarizes the light - dependent reactions of photosynthesis. what is the input of the light - dependent reactions, labeled x? co₂, h₂o, o₂, and light co₂, h₂o, and light co₂ and h₂o h₂o and light

the diagram summarizes the light - dependent reactions of photosynthesis. what is the input of the light - dependent reactions, labeled x? co₂, h₂o, o₂, and light co₂, h₂o, and light co₂ and h₂o h₂o and light

Answer

Brief Explanations:

In the light - dependent reactions of photosynthesis, water ($H_2O$) is split and light energy is absorbed to produce chemical energy (ATP and NADPH) and oxygen. Carbon dioxide ($CO_2$) is used in the light - independent reactions (Calvin cycle), not in the light - dependent reactions, and oxygen is an output of the light - dependent reactions, not an input.

Answer:

D. $H_2O$ and light