Components of the Photosystem Electron Transport Chain

These flashcards cover the key components of the Photosystem electron transport chain as part of the photosynthesis process.

Photosystem II

A component of the electron transport chain that includes P680 and is involved in the initial steps of photosynthesis.

P680

A chlorophyll dimer in Photosystem II that absorbs light energy.

Pheophytin

The primary electron carrier associated with Photosystem II.

Plastoquinone

A lipid-soluble electron carrier in the membrane.

Cytochrome

A protein complex that transfers electrons in the electron transport chain.

Ferredoxin (Fd)

An iron-sulfur protein that carries electrons in photosynthesis.

NADP+ reductase

An enzyme that catalyzes the reduction of NADP+ to NADPH in photosynthesis.

Photosystem I

A component of the electron transport chain that contains P700 and is involved in the later stages of photosynthesis.

P700

A chlorophyll dimer in Photosystem I that absorbs light energy.

Plastocyanin

An electron carrier in a water-soluble protein in the lumen of the thylakoid.

Fe-S center

A primary electron carrier part of Photosystem I that contains iron and sulfur.

NADP+ reductase (dehydrogenase)

A peripheral membrane protein located in the stroma that facilitates the reduction of NADP+.