Passage VII

Enzymes are large protein molecules that increase the rate of chemical reactions in living systems. The substrate is the substance that interacts with the enzyme in a reaction. The acceleration factor is the factor by which the enzyme increases the rate of a reaction. Figures 1–3 show the effects that changes in temperature, pH, and substrate concentration have on the rate of reaction of a substrate when Enzymes A and B are present. Figure 4 shows the effects that changes in the concentrations of Enzymes A and B have on the rates of reaction in substrate solutions of the same concentration.

40. The figure below shows the relative acceleration factors for pepsin, an enzyme found in the stomach, and trypsin, an enzyme found in the small intestine.

Based on this figure and Figure 2, one would best conclude that compared to the acidity of solutions in the stomach, the solutions in the small intestine are:

Answer and Explanation

Your Answer is

Correct Answer is G

Explanation

General knowledge questions.

The stomach contains acid, so the fluid in the gut is less acidic than gastric juice. It can also be seen from the figure that the enzyme trypsin in the intestine has a higher acceleration factor at a higher pH value