What is the basis of classification of algae? | NCERT solution | Class 11 Biology | Unit-3 Plant Kingdom

1. What is the basis of classification of algae?



The presence or absence of pigments is the main basis of classification of algae.

• Chlorophyceae: Chlorophyll a and b are present in them and impart green colour. Chlorophyceae are also called ‘blue-green algae’.

• Phaeophyceae: Chlorophyll a and c and fuxoxanthin are present. Fucoxanthin imparts brown colour. Phaeophyceae are also called ‘brown algae’.

• Rhodophyceae: Chlorophyll a and d and phycoerythrin are present. Phycoerythrin imparts red colour. Rhodophyceae are also called ‘red algae’.

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