Question

what is c2 cycle...?
is photorespiration and c2 cycle same...?

Answer 1

Photorespiration. Photorespiration is a wasteful pathway that competes with the Calvin cycle. It begins when rubisco acts on oxygen instead of carbon dioxide.

Answer 2

here is your appropriate answer.

Basically

Photorespiration is also known as oxidative photosynthetic C2 cycle.

so,,, we can define Photorespiration and C2 Cycle as a phenomenon in which there is no formation of ATP or NADPH, but there is utilization of ATP with release of CO2. It is also considered a wasteful process.

There is no difference between Photorespiration and C2 Cycle. Photorespiration is a light-dependent process and also it is a salvage pathway for 2-phosphoglycolate (2-PG), which is the product of the oxygenase activity of RubisCO or ribulose 1,5-bisphosphate carboxylase/oxygenase, to the C3 cycle or Calvin cycle intermediate phosphoglycerate.

__hope it help ✌️