First slide

Algae

Question

Assertion : Ectocarpus is a brown alga.
Reason : Ectocarpus has a pigment fucoxanthin in higher amounts, reserve food as laminarin and mannitol and chlorophylls a and c.

Easy

A

Both assertion and reason are correct and reason explains the assertion.
B

Both assertion and reason are correct but reason does not explain assertion.
C

Assertion is correct and reason is incorrect.
D

Assertion is incorrect and reason is correct.

Solution

Ectocarpus is a brown alga or phaeophyceae member. It is because
a. has fucoxanthin in higher amounts that imparts brown color.
b. has chlorophyll a and c.
c. reserve food is laminarin or mannitol (complex carbohydrates).
d. zoospores and gametes are pyriform with two unequal lateral flagella.

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