_______ absorbs light and takes part in photosynthesis directly.

Xanthophyll

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Chlorophyll b

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Chlorophyll a

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Carotene

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Solution

The correct option is C
Chlorophyll a

Pigments that can absorb sunlight are found in grana. They include chlorophyll a, chlorophyll b, carotene and xanthophyll. However, only chlorophyll a can directly take part in photosynthesis. Other pigments (called accessory pigments) absorb light and transfer it to chlorophyll a.

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Q. Who revealed the chemical composition of chlorophyll, carotene and xanthophyll?

Question 02
Which pigment acts directly to convert light energy to chemical energy?
(a) Chlorophyll-a (b) Chlorophyll-b
(c) Xanthophyll (d) Carotenoid

Q. Which of the following have yellow colour pigment ?
a. Chlorophyll a
b. Xanthophylls
c. Carotene
d.chlorophyll b

Q. Match and find the correct option.

	$I$		$I I$
$(a)$	Chlorophylls $a$ and $c$ , fucoxanthin and manitol	$(i)$	Porphyra
$(b)$	Chlorophylls $a$ and $d$ , phycoerythrin and floridean starch	$(i i)$	Volvox
$(c)$	Chlorophylls $a$ and $b$ , pyrenoids with starch and proteins	$(i i i)$	Hibiscus
$(d)$	Chlorophylls $a$ and $b$ , carotenes and xanthophylls	$(i v)$	Dictyota
$(e)$	Chlorophylls $a$ and $b$ , carotenes, xanthophylls, leucoplasts store carbohydrates, fats and proteins	$(v)$	Anabaena

Q. Assertion :The colour of the leaf is due to the presence of four pigments-chlorophyll a, chlorophyll b, xanthophylls and carotenoids Reason: Chlorophyll b is the chief pigment associated with photosynthesis

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