15. Some students investigated the effect of pH on the activity of this enzyme. their results are shown in table.
| pH | Time for starch to be broken down/min |
| 3.5 | 9.0 |
| 4.0 | 7.0 |
| 5.2 | 4.0 |
| 6.6 | 1.5 |
| 7.0 | 1.0 |
| 8.0 | 4.5 |
| 8.5 | 10.0 |
b) Use the graph to determine the optimum pH of the enzyme
c) Describe the effect of pH on the activity of the enzyme
Dear student,
a) Graph is given below:-
b) Optimum pH is 7.0 because at this pH enzyme takes minimum time to break down starch
c) As the pH increases the activity of enzyme increases because enzyme takes less time to break starch but after pH 7 the activity of enzyme decreases because after pH 7 enzyme takes more time to break down starch.
Regards
a) Graph is given below:-
b) Optimum pH is 7.0 because at this pH enzyme takes minimum time to break down starch
c) As the pH increases the activity of enzyme increases because enzyme takes less time to break starch but after pH 7 the activity of enzyme decreases because after pH 7 enzyme takes more time to break down starch.
Regards