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Green Revolution

Why do certai...

Question

Why do certain algae like Laminaria, Sargassum, etc. have brown colour?

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Solution

Algae like Laminaria, Sargassum, etc. because the amountof brown coloured pigment (fucoxanthin) is more in brownalgae.

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Q. Sargassum and Alaria are edible brown algae.

Q. Assertion :Brown algae vary from olive green to brown in colour. Reason: Fucoxanthin is responsible for colour variation in brown algae.

Q. Xanthophyll pigment provides yellow colour but it's type fucoxanthin provides brown color to brown algae so why fucoxanthin is a type of Xanthophyll ?

Q. Match Column - I with Column - II and select the correct option from the codes given below.

Column - I	Column - II
P. Brown algae	(i) Anabaena
Q. Blue-green algae	(ii) Gelidilum
R. Green algae	(iii) Sargassum
S. Red algae	(iv) Chlamydomonas

Q. This provides brown colour to algae

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