Question

name the red alga from agar is obtained

Answer 1

The gelling agent in agar is an unbranched polysaccharide obtained from the cell walls of some species of red algae, primarily from the genera Gelidium and Gracilaria. For commercial purposes, it is derived primarily from Gelidium amansii. In chemical terms, agar is a polymer made up of subunits of the sugar galactose.

Answer 2

Agar is obtained from red algae called Gelidium amansii.

Explanation:

• Agar , also known as agar-agar is a 'jelly-like substance' which is obtained from the 'cell walls' of red algae.
• It is a 'mixture' of agarose and agaropectin.  Red algae are a part of the genera 'gelidium' and 'gracilaria'.  
• Agar is often used in Asian desserts and is also used for microbiological work, as gelatin, laxative, in soups, preservatives and also can be found in ice creams.

Learn more about red algae:

Which red algae is not red in colour

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Differentiate between the following:-

(i)red algae and brown algae

(ii) liverworts and moss

(iii) homosporous and heterosporous pteridophyte

(iv) syngamy and triple fusion

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