BIO 1130 Lecture Notes - Lecture 25: Light-Dependent Reactions, Photosystem Ii, P680

• School: University of Ottawa
• Department: Biology
• Course: BIO 1130
• Professor: Gambarotta Sandro

Document Summary

Photosystems: antenna complex, absorbs light, transfers it to chlorophyll a via inductive resonance, on the outside, reaction center, pair of specialized chlorophyll a molecules bound by proteins, primary electron acceptor. In photosystem i: protein is p700, in photosystem ii: protein is p680. Stoichiometry: how many photons need to be absorbed by the photosynthetic apparatus to produce one molecule of oxygen, 2 h2o 4 h+ + 4 electrons + 02. In order to produce 1 molecule of oxygen you must have the absorption of eight photons of light.