First slide

How many types of Pigments are involved in Photosynthesis?

Question

Statement I: Chlorophyll a is the chief pigment in light reaction of photosynthesis.
Statement II: Chlorophyll a pigment alone absorbs the light energy in a photosystem.

Easy

A

Statement I and II both are true
B

Statement I is true but statement II is false
C

Statement I is false but statement II is true
D

Statement I and II both are false

Solution

Though chlorophyll a is the major pigment responsible for trapping light, other thylakoid pigments like chlorophyll b, xanthophylls and carotenoids, which are called accessory pigments, also absorb light and transfer the energy to chlorophyll a. Therefore, these pigments enable a wider range of wavelength of incoming light to be utilised during photosynthesis.

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