The upcoming discussion will update you about the differences between cyclic and non cyclic photophosphorylation.
Cyclic Photophosphorylation:
1. Involvement of only PS-I
2. No evolution of oxygen and photolysis of water.
3. Electron released from PS-I comes back to it through electron carriers.
4. It synthesizes only ATP.
5. It takes place in isolated chloroplast and bacterial photosynthesis.
6. No effect of DCMU.
Non Cyclic Photophosphorylation:
1. Involvement of both PS-I and PS-II.
2. Associated with oxygen evolution and photolysis of water.
3. Electron releaved from PS-II is utilised in PS-I, and does not come back.
4. Both ATP and NADPH2 are synthesized.
5. Commonly takes place in green plants.
6. DCMU inhibits the process.