Question

Question #271b2

Answer 1

The photosynthetic pigments present in thylakoid membranes of chloroplast capture the sunlight energy.


Explanation:

The photosynthetic pigments are arranged to form **photosystems ** within thylakoid membranes for efficient absorption and utilisation of sunlight energy.

Each photosystem constitutes two main parts. A brief concept to them is as follows:

• Antenna Complex:
  It is a light- harvesting complex containing proteins and many molecules of `color(blue)("cholorophyll a, cholorophyll b and carotenoids"`. These all are photosynthetic pigments. Photons of light are first captured & absorbed by these pigments of antenna complex which then transfer the energy to the reaction center.
• Reaction Center:
  It has one or more molecules of `color(green)("cholorophyll a"` along with primary electron acceptor and associated electron carriers of electron transport system.
  It receives the absorbed sunlight energy from the antenna complex and convert that energy into `"chemical energy"`.

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