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. chemical structure image complete the sentence. during a hydrolysis reaction, dropdown are broken down into dropdown to release dropdown.

Explanation:

1. From the text: "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." And the diagram shows a polymer (two sugar units linked) being broken down with water into monomers (single sugar units) and energy release (implied by glycogen's role in muscle energy).
2. So first blank: Polymers (since hydrolysis breaks polymers). Second blank: Monomers (as polymers break into monomers). Third blank: Energy (as glycogen breakdown releases energy for muscle contraction).

Answer:

During a hydrolysis reaction, $\boldsymbol{\text{polymers}}$ are broken down into $\boldsymbol{\text{monomers}}$ to release $\boldsymbol{\text{energy}}$.