pH affect enzyme activity:
-
An increase in hydrogen ion (H+) concentration i.e. pH considerably influences enzyme activity.
-
Each enzyme functions most efficiently at a particular pH called Optimum pH at which the velocity is maximum.
-
Generally, the optimum pH for the activity of most enzymes is in the range of 6-7.5 (neutral pH).
-
Beyond these limits, denaturation of enzymes takes place.
-
However, there are some exceptions.
-
The optimum pH for some of the enzymes are listed below:
|
Name of Enzyme
|
Optimum pH
|
|
1. Pepsin
|
1-2
|
|
2. Trypsin
|
8.0
|
|
3. Alkaline phosphatase
|
10-11
|
|
4. Acid phosphatase
|
4-5
|
