Download effect of pH on enzyme worksheet

Name ______________________________________ Date _______________ Period ________
“Effect of pH on Enzyme Activity”
The graph below shows the relationship between
2 digestive enzymes, PEPSIN (solid line) and
TRYPSIN (dashed lines). Pepsin works in the
stomach while trypsin works in the small
intestine. Use the information in the graph to
answer the following questions.
Rate of Reaction
Enzyme and pH
0 1
2
3 4
5 6 7 8 9
pH
10
Name ______________________________________ Date _______________ Period ________
1. Name the enzyme that works best in highly
acidic environments.
2. Name the enzyme that works best in lessacidic environments.
3. Identify the pH value at which pepsin works
best.
4. Identify the pH value at which trypsin works
best.
5. What does the graph tell us about the relative
acidity of the stomach and small intestine? How
did you know?
6. Describe how enzymes work.