Science 17

Pepsin is an enzyme in the stomach that digests proteins. Researchers interested in digestive disorders studied the effect of temperature on this enzyme. 10 milliliters of pepsin and 5 grams of protein were placed in each of five test tubes. The tubes were then kept at different temperatures. After 24 hours, the contents of each tube were tested to determine the amount of protein that had been digested. The results are recorded in Table 1.