What kind of chemical is starch composed of?

Answer 1

Starch is not really a pure compound, it is a polymere of alpha-1,4 (in amylose) and, in other cases also [alpha-1,6 + alpha-1,4 (in amylopectin)], glucosidicly bonded D-glucopyranose molecules (20 - 10.000 monomeres).

Answer 2

Starches are made of sugar molecules hooked together in chains. The process of forming the chain involves the release of a water molecule. At the molecular level, sugars are carbon chains in which each carbon has a hydroxyl group (-OH) bound to it. Forming a starch involves removing an -H from a carbon on one sugar and an -OH from a carbon on the second. Then the second carbon binds with the O of the first:

-C-O-H + H-O-C- --> -C-O- + +C- + H+ + OH- --> -C-O-C- + H-O-H

Hydrolysis (hydro = water, lysis = spllitting) is the reverse of this reaction: a water molecule is added to the oxygen molecule that bridges the two sugars. The sugars separate with a hydroxyl group where the bridge was.

Answer 3

starch is complex hydrate of carbon with the formula of (C6[H2O]5)n

Answer 4

Starch is composed of : amylose, an essentially linear polysaccharide, and amylopectin, a highly branched polysaccharide.

Answer 5

Starch hydrolysis is an important process in biochemistry and very common in the human body. The end product of these reactions are glucose molecules.

Answer 6

Starch is made of a glucose polymer.