Question

Agar is commercially got from

• A. Green algae
• B. Blue-green algae
• C. Brown algae
• D. Red algae

Answer 1

The correct option is D Red algae

Agar is a jelly-like substance, obtained from Red algae.

Agar is derived from the polysaccharide agarose, which forms the supporting structure in the cell walls of certain species of algae and which is released on boiling. These algae are known as agarophytes and belong to the Rhodophyta (red algae) phylum. Agar is actually the resulting mixture of two components: the linear polysaccharide agarose and a heterogeneous mixture of smaller molecules called agaropectin. so option D is correct.