Question

Which pigment gives blue colour to the blue-green algae?

• A. Phycoerythrin
• B. Phycocyanin
• C. Phycocolloid
• D. All of the above

Answer 1

The correct option is B Phycocyanin

Phycocyanin gives blue colour to the blue-green algae.
The chlorophyll pigments give green colour.
The phycoerythrin gives red colour.
But collectively the members of the cyanophyceae are blue green in colour.

Phycocolloid is the coverings of algae which are polysaccharides and protects them from harsh environments.