Question

When a photon is absorbed by chlorophyll, the energy level of some of the electrons in the pigment is raised. which of these are possible after that?

Answer 1

An electron is stimulated from the ground state to a higher energy level as a result of the absorption of a photon in the PAR range by a photosynthetic pigment.

These excited states can go from one pigment molecule to another, but because moving from carotenoids and chlorophyll b to chl an is energetically less favourable, excited states created on those pigment molecules end up on chl a.

What is a Photosystem ?

The functional components of photosynthesis are called photosystems, and they are identified by specific pigment organisation and association patterns.

• Photosystems are responsible for absorbing and transferring light energy, which implies transferring electrons. The thylakoid membranes contain photosystems in terms of physical location.

• Photosystem I and Photosystem II have been identified in plants and algae. Each of them consists of chlorophyll molecules, accessory pigments, proteins and other molecules.

Learn more about Photosystem here:

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