Ncert Exercises & Solutions

Which property of the pigment is responsible for its ability to initiate the process of photosynthesis? Why is the rate of photosynthesis higher in the red and blue regions of the spectrum of light?

The chlorophyll pigments are present in the thylakoid membranes. They have the property of excitability and emits e^- in the excited stage, though this e^- is replaced and transferred by the e^- generated from splitting of water molecules.

Red and Blue Light have maximum energy which a chlorophyll pigment absorbs and get excited and initiate the process of photosynthesis. Also, its wavelength are (400-700 nm) i.e., between the Photosynthetic Active Radiation (PAR).

Thus, the rate of photosynthesis is higher in blue and red light.

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