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Differentiate between Red, Brown and Green Algae.

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S. No. Red Algae Brown Algae Green Algae
(i) Mainly marine Marine forms Chiefly freshwater.
(ii) Only a few are unicellular. Unicellular forms do not exist. Unicellular species are more.
(iii) Thylakoids unstacked. Occur in groups of three. Stacked in groups of 2-20
(iv) Only chlorophyll a present Chlorophyll “a“ and “c” present. Chlorophyll 'a' and' 'b' is present
(v) Fucoxanthin present. Fucoxanthin is present. Fucoxanthin is absent.
(vi) Phycobilins prement Absent. Phycobilins absent.
(vii) Reserve food is floridean starch. Reserve food is laminarin. Reserve food is starch.
(viii) Motile stages are not observed. Present. Motile stage is present.

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