Question

difference between phosphorylation and photophosphorylation

Answer 1

Phosphorylation is the ATP synthesis driven by electron transfer to oxygen whereas Photophosphorylation is ATP synthesis driven by light as the name suggests.

Answer 2

The synthesis of ATP when electron transfers to oxygen (without taking help of light) is called phosphorylation.
The synthesis of ATP with the help of light is called photophosphorylation.