DENDROLOGY

Detailed explanation-1: -What is a photosystem? Photosynthetic pigments, such as chlorophyll a, chlorophyll b, and carotenoids, are light-harvesting molecules found in the thylakoid membranes of chloroplasts. As mentioned above, pigments are organized along with proteins into complexes called photosystems.

Detailed explanation-2: -A photosystem is a collection of pigments that includes chlorophyll a, chlorophyll b and carotenoids. Photosystem I is located in the thylakoid membranes of green plants and algae.

Detailed explanation-3: -A photosystem is an array of light-harvesting pigments containing a reaction center that carries out the necessary photochemistry.

Detailed explanation-4: -Photosystem II (PSII) has a P680 reaction centre containing chlorophyll ‘a’ that uses light energy to carry out the oxidation (splitting) of water molecules, and to produce ATP via a proton pump.