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:

The text states that glycogen (a polymer) undergoes hydrolysis. Hydrolysis breaks polymers (like glycogen) into monomers (in this case, glucose units). The purpose of breaking down glycogen (a polymer) is to release energy for muscle contraction.

Answer:

During a hydrolysis reaction, polymers are broken down into monomers to release energy.