Enzyme Lab Effects of pH
By: Alex Rafael C. 1st
Identification of Variables
The Dependent variables are enzyme concentration and pH.
The Constant was what the enzymes were composed of.
LabQuest app Four 18 x 150 mm test tubes
Vernier Gas Pressure Sensor Ice
rubber-stopper assembly pH Buffers
10 mL graduated cylinder Test Tube Rack
250 mL beaker of water Thermometer
Hydrogen Peroxide Four Disposable Pipettes
Styrofoam Cup Logger Pro
1. Wear Goggles
2. Connect plastic tubing to the valve on Gas Pressure sensor.
3. Connect Gas pressure sensor to LabQuest and choose new from the file menu.
4. Add 2, then 3, then 4 drops to each separate test tube respectively.
5. Record data of enzyme activity using gas pressure sensor.
6. Graph Data