Question

1. students did an experiment comparing the activity of four different enzymes, a, b, c, and d. the results are represented in the graph below. a valid conclusion based on the information in the graph is that____ the effect of ph on enzyme activity relative rate of enzyme activity a b c d acid 7 base 14 ph a.the ph of some enzymes changes as the temperature changes. b. enzymes change color in proportion to the rate of activity. c. a difference in the ph of an environment changes enzyme activity. d. enzyme activity causes acids to change into bases over time.

Explanation:

The graph shows the relative rate of enzyme activity on the y - axis and pH on the x - axis for four different enzymes A, B, C, and D. It clearly indicates that as the pH of the environment changes, the enzyme activity (relative rate) also changes. Option a is about pH changing with temperature which is not shown. Option b about color change is not depicted. Option d about enzyme activity changing acids to bases is not indicated.

Answer:

d. Enzyme activity causes acids to change into bases over time. (This is incorrect. The correct answer is that a difference in the pH of an environment changes enzyme activity, which is option c)
c. A difference in the pH of an environment changes enzyme activity.