Enzyme concentration core practical
- Created by: Emling
- Created on: 19-03-19 09:52
View mindmap
- Enzyme concentration- core practical
- Variables
- Independent
- Concentration of yeast
- Dependent
- Volume of gas produced
- Control
- Temperature
- Temperature can denature enzymes
- Volume of solution
- To make results comparable
- pH of water
- Enzymes have an optimum pH where they work best
- Time measured for
- Make results comparable
- Volume of hydrogen peroxide
- Substrate that breaks down the enzymes
- Temperature
- Independent
- Equiptment
- Yeast
- Scales
- Distilled water
- String rod
- Syringe
- Measuring cylinders
- Delivery tube
- Conical flask
- Stop watch
- Clamp stands
- Method
- 1. Measure out 4g of yeast
- 2. Put yeast in 100ml of distilled water and stir
- 3. Fill up a bowl with water
- 4. Fill up the measuring cylinder with water and put into bowl
- 5. Clamp it and a conical flask in place
- 6. Syringe yeast solution into conical flask.
- 7. Measure out 4cm cubed of hydrogen peroxide and put in conical flask replacing the bung
- 8. Start the stopwatch
- 10. Read the volume of water from the measuring cylinder for 120 seconds
- Variables
Similar Biology resources:
Teacher recommended
Comments
No comments have yet been made