The light dependent reaction takes place in the thylakoid membranes of the chloroplasts. Here, light energy absorbed by photosynthetic pigments in the photosystems and converted to chemical energy.
The light energy is used to add a phosphate group to ADP to form ATP, and reduced NADP to form NADPH. ATP transfers energy and reduced NADP transfers hydrogen to the light-independent reaction.
During the light dependent reaction water is oxidised to oxygen.
Light energy absorbed is used to;
Make ATP from ADP and inorganic phosphate. This is called photophosphorylation.
Make NADPH from NADP
Splitting water into protons, electrons and oxygen. This is called photolysis.
