Question

1. which conclusion can be drawn concerning the enzymes whose activity 1 point is represented in the graph? use the graph below to answer questions 12 and 13: the graph shows the relationship between the rate of enzyme action and ph for three enzymes: pepsin, urease, and trypsin. at a ph of 7.5, the rate of activity of urease is the same as that of trypsin. at a ph of 2.5, the rate of activity of urease is decreasing. at a ph of 4.0, the rate of activity of pepsin is the same as that of urease. at a ph of 12.0, the rate of activity of trypsin is increasing.

Explanation:

Step1: Analyze graph at pH 7.5

Urease and trypsin rates differ.

Step2: Analyze graph at pH 2.5

Urease rate is increasing.

Step3: Analyze graph at pH 4.0

Pepsin and urease rates are equal.

Step4: Analyze graph at pH 12.0

Trypsin rate is decreasing.

Answer:

At a pH of 4.0, the rate of activity of pepsin is the same as that of urease.