Question

Why does cyclic photophosphorylation cannot sustain photosynthesis?

Answer 1

Cyclic photophosphorylation surely produces ATP but it can not produce NADPH2

Both ATP and NADPH2 are required for performing dark reactions which produce sugar( glucose) which provides energy

So cyclic photophorylation alone cannot sustain photosynthesis

Answer 2

Answer:

Explanation:

Why does non cyclic Photophosphorylation occur?

The electrons combine with H+ and reduce NADP to NADPH2. The hydrogen ions also called protons are made available by splitting up of water. Non-cyclic photophosphorylation needs a constant supply of water molecules. The net result of non-cyclic phosphorylation is the formation of oxygen, NADPH and ATP molecules.