Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Agar-agar is (1) a jelly like substance, employed in the manufacture of ice cream (2) used in culture medium for microorganisms as solidifying agent (3) obtained from Gelidium, Gracilaria (4) a product of brown algaeA) 1,2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: A
Solution :
A jelly-like substance called agar-agr. It is a complex polysaccharide, it is extracted has certain sps of red algae belonging to Gelidium, Gracillaria and Gigartina. It is used as solidifying agent in making culture medium for micro-organisms. Also used as stalizer or emulsifier in food, cosmetics and leather industries.
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