Question

What is a photosystem? What does it consist of?

Answer 1

Photosystem:

1. Photosystems are the functional and structural elements of photosynthetic protein complexes.
2. They work together to carry out the basic photochemistry of photosynthesis: light absorption , energy and electron transport.
3. Photosystem I and Photosystem II are the two types of photosystems.
4. Photosystem II is the first protein complex of the photosynthesis processes that are light-dependent.

Components of photosystem:

The photosystem is divided into two halves.

1. Antenna Complex: It is a light-harvesting complex made up of proteins and numerous chlorophyll a, chlorophyll b, and carotenoid molecules.
2. Reaction centers: One or more molecules of chlorophyll a, as well as the principal electron acceptor and related electron carriers of the electron transport system, make up the reaction center.