Computer Interfacing

Enzyme Action: Testing Catalase Activity

Materials List

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Macintosh or IBM-compatible computer	600-mL beaker
Serial Box Interface or ULI	enzyme suspension
Vernier Biology Gas Pressure Sensor	four 18X150 mm test tubes
Data Logger	ice
Graphical Analysis or graph paper	pH buffers
1-hole rubber stopper assembly	test tube rack
10-mL graduated cylinder	thermometer
150-mL beaker of water	three dropper pipettes
3% H2O2

Text Materials List

Here's what you need to complete the experiment:

• Macintosh or IBM-compatible computer
• Serial Box Interface or ULI
• Vernier Biology Gas Pressure Sensor
• Data Logger
• Graphical Analysis or graph paper
• 1-hole rubber stopper assembly
• 10-mL graduated cylinder
• 150 beaker of water
• 3% H2O2
• 600-mL beaker
• enzyme suspension
• four 18X150 mm test tubes
• test tube rack
• three dropper pipettes

optional

• ice
• pH buffers
• thermometer

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