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Reproduction in Algae

This class of...

Question

This class of algae has its cell wall made up of cellulose and algin, with chlorophyll a, c and fucoxanthin as its pigments. The reserve food is mannitol and laminarin. Identify the class.

A

Chlorophyceae

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B

Phaeophyceae

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C

Rhodophyceae

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D

Cyanophyceae

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Solution

The correct option is B Phaeophyceae
The brown algae belong to the class Phaeophyceae and they are characterised by:
i) Presence of chlorophyll a, c and fucoxanthin as major pigments
ii) Reserve food material is mannitol and laminarin.
iii) Cell wall has cellulose and algin.

Cyanobacteria belong to the class Cyanophyceae.

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Similar questions

Q. This class of algae has chlorophyll a, c and fucoxanthin as major pigments, uses mannitol and laminarin to store food and its cell wall has cellulose and algin. Identify the class of algae.

Q. Pick the option which includes all the correct statements from the following.

A. Chlorophyceae: Chlorophyll a and chlorophyll c pigments, starch-stored as food, asexual reproduction by zoospores.

B. Phaeophyceae: Fucoxanthin pigment, mannitol-stored as food, pear-shaped zoospores with 2, unequal sized apical flagella.

C. Rhodophyceae: Phycoerythrin pigment, floridean starch, reproduction by non-motile spore.

Q. Consider the following statements regarding the major pigments and stored food in the different groups of algae and select the correct options given.
A. In chlorophyceae, the stored food material is starch and the major pigments are chlorophyll a and d.
B. In phaeophyceae, laminaria is the stored food and major pigments are chlorophyll a and b.
C. In rhodophyceae, floridean starch is the stored food and the major pigments are chlorophyll a, d and phycoerythrin

Q. Assertion :Unlike plants, Animals do not possess chlorophyll Reason: Animal has cell wall made up of cellulose.

Q. Laminarin and mannitol, the reserve food of brown algae, are

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