Energy is released and used to pump protons from stroma to thylakoid space. Name the components of the electron transport system. Which one functions as a proton pump. Called chemiosmotic phosphorylation . This process is also called photophosphorylation .
PI absorbs light.
P 700 has electrons boosted to higher energy level. All of this is called noncyclic photophosphorylation . Cyclic Electron Flow PI works by itself. Electrons boosted from P 700 eventually go back. Called cyclic photophosphorylation .