Question

Which system breaks down protein and starch so that they can be used
by cells?

Answer 1

Cellular respiration

Step-by-step explanation:

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Answer 2

Digestion

Digestion of carbohydrates, proteins, and fats continues in the small intestine. Starch and glycogen are broken down into maltose by small intestine enzymes. Proteases are enzymes secreted by the pancreas that continue the breakdown of protein into small peptide fragments and amino acids.

Step-by-step explanation: