Which statement best explains how the structure of a starch molecule relates to the function of the molecule?
a. a branching structure provides many points where enzyme digestion can take place and release glucose molecules.
b. a branching structure makes the molecule stronger.
c. a branching structure has more chemical bonds than an unbranched structure.
d. a branching structure contains bonds that are harder to break.

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explanation:

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a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.