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3.	3. Which of the following class of algae consists of alginic acid in their cell wall component?
	A.	a) Green algae
	B.	b) Red algae
	C.	c) Brown algae
	D.	d) Lichens

	Answer: Option Answer: c


	Explanation:
	Explanation: Brown algae or pheophyta is marine or fresh water algae. It consists of mainly chlorophyll a, and c along with fucoxanthin and carotenoids. Their cell wall consists of cellulose, sulfated polysaccharides, and alginic acid.



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