A) chitin
B) starch
C) cellulose
D) dextran
Correct Answer: D
Solution :
Dextran is a plasma extender having 6-10% solution of dextrins. Dextrins are soluble polymer of D-glucose. They are produced by partial hydrolysis of starch or partial polymerization of simple sugar (like sucrose) through micro-organism Leuconostoc mesenteroides. Starch is a polysaccharides, made up of glucose units. It is a reserve carbohydrate of plant cells. Cellulose is a polysaccharides made up of glucose units. It is the most abundant organic molecule of earth. Cell wall of plant cells is made up of cellulose. Chitin is a polymer of acetylglucosamine. Cell wall of fungi and exoskeleton of arthropods are made of chitin.
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