Question

in animal cells, glycogen is broken down to release energy to help with muscle contraction. a polymer like glycogen is broken down in a process called hydrolysis, where a water molecule breaks, or lyses, a bond in the polymer to make monomers. the model shows a hydrolysis reaction. complete the sentence. during a hydrolysis reaction, are broken down into to release .

Explanation:

1. From the text: "a polymer like glycogen is broken down in a process called hydrolysis... to make monomers" and "glycogen is broken down to release energy".
2. The diagram shows a polysaccharide (polymer) being split by water into monosaccharides (monomers), consistent with hydrolysis of polymers to monomers for energy release (as glycogen breakdown aids muscle contraction, an energy - requiring process).

Answer:

During a hydrolysis reaction, polymers (like glycogen) are broken down into monomers to release energy.