Correct Answer - A
(a) Agar is a gelatinous, sulphated non-nitrogenous, tasteless, odourless mucopolysaccharide obtained from middle lamella of cell wall of marine red algae like Gracillaria, Gelidium, Gigartina, etc. Commonly known as agarophytes. It is used as solidifying agent in the culture medium, as luxative stabiliser or thickener in preparing jams, jellies, creams, ice creams, bakery products and as luxative in drug industry.
