Photosystem I

Definition

Photosystem I is a protein complex involved in photosynthesis that uses light energy to transfer electrons from plastocyanin to ferredoxin, leading to the production of NADPH.

Related terms

Plastocyanin: A small protein involved in electron transport within the chloroplasts during photosynthesis.

Ferredoxin: An iron-sulfur protein that mediates electron transfer in a range of metabolic reactions.

NADPH (Nicotinamide adenine dinucleotide phosphate): A coenzyme used in anabolic reactions, such as lipid and nucleic acid synthesis, which require NADPH as a reducing agent.