Question

The digestion of food involves the body's use of enzymes to assist in breaking down organic compounds. The following chart illustrates the amount of time necessary for protein digestion in varying conditions.

Digestion Rates of Proteins

Reaction Seconds
Protein only 60
Protein + acid 30
Protein + acid + enzyme 10
This chart provides evidence that enzymes -

(1 point)
Responses

slow down chemical reactions
slow down chemical reactions

maintain a specific pH
maintain a specific pH

speed up chemical reactions
speed up chemical reactions

dissolve in water

Answer 1

The chart provides evidence that enzymes -

**speed up chemical reactions**.

This is indicated by the significantly reduced time for protein digestion when enzymes are present, compared to the other conditions.