Complex carbohydrates that serve as energy storage molecules in animals and plants must be easily digestible so that the molecule can release monomers which contain stored energy. Enzymes responsible for catalyzing they hydrolysis reactions that release carbohydrate monomers are only able to break alpha bonds. Based on this knowledge, which of the carbohydrate polymers below would you expect to be made from alpha bonds? A. cellulose B. peptidoglycan C. starch D. chitin

Question

Azul French

Biology

3 November, 16:49

Complex carbohydrates that serve as energy storage molecules in animals and plants must be easily digestible so that the molecule can release monomers which contain stored energy. Enzymes responsible for catalyzing they hydrolysis reactions that release carbohydrate monomers are only able to break alpha bonds. Based on this knowledge, which of the carbohydrate polymers below would you expect to be made from alpha bonds? A. cellulose B. peptidoglycan C. starch D. chitin

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Answers (1)

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Selena Green · Answer 1

Answer: C. starch

Explanation:

starch is a polysacharride made up of amylose (unbranched molecule) and amylopectin (branched molecule) both of alpha glucose.

Alpha glucose have OH - hydroxyl group below the first carbon in the ring structure.

these alpha carbons of the amylose and amylopectinc are fused by condensation reaction to form alpha glycosidic bonds.

for example the 1,4, alpha glycosidic bonds in starch is formed between the alpha cabon 1 on one ring structure of glucose and carbon 4 of the next carbon in amylose. it is long coiled to give a compact structute to starch. While the shorter 1, 6 alpha glycosidic bond added to the relatively large grains of starch.