Question

Describe the main chemecal changes which occur during photosynthesis in
1 Light reaction
2 Dark reaction

Answer 1

Answer:

In light phase,the main donor is water.

Here, NADP is converted to NADPH.

NADPH is used to fuel the reactions that take place in dark phase.

In dark phase, NADPH is the main electron donor. This provides the hydrogen and r

electrons needed to combine CO2 into carbohydrate molecule. ATP provides the energy to power the Calvin cycle.