1. Experiment Questions Enzyme Temperature

2. State one factor that you kept constant during the investigation. pH or substrate conc. or enzyme conc.

3. Enzyme Temperature How did you vary the temperature? Water baths (at different temps.)

4. Enzyme Temperature How did you know that the enzyme had completed its activity? No more product/ Colour change/ No more bubbles/ No more foam

5. Enzyme Temperature Name the enzyme that you used. Name of enzyme, e.g. catalase

6. Enzyme Temperature Name the substrate of the enzyme that you used. Name of matching substrate, e.g. hydrogen peroxide

7. Enzyme Temperature A number of factors were kept constant during this experiment. Explain how you kept one of them constant? pH—used a buffer substrate conc.—same volume enzyme conc.—same amount

8. Enzyme Temperature How did you measure the rate of activity of the enzyme? Time / change e.g. colour, foam, etc or data logger / sensor named

9. Enzyme Temperature What was the result of your investigation? Activity varies with temperature or reference to activity at a particular temperature

10. Enzyme Temperature (i) Name an enzyme that you used. (ii) Name the substance that this enzyme acted on. (i) Catalase or amylase (ii) H 2 O 2 or starch (must match enzyme)

11. Enzyme Temperature How did you vary the temperature? Water baths/ at different temperatures/ thermostat

12. Enzyme Temperature How did you measure the rate of the enzyme’s action? Volumes of foam/ per minute/ disappearance of blue colour/ per minute

13. Enzyme Temperature (i) What enzyme did you use? (ii) What substrate did you use? Name of (i) enzyme, e.g. catalase (ii) substrate, e.g. H 2 O 2 —must match

14. Enzyme Temperature How did you know that the enzyme had completed its activity? No more product /colour change / no more bubbles / no more foam

15. Enzyme Temperature How did you vary the temperature in your experiment? Water bath / different temperature treatments / Bunsen / thermostat

16. Enzyme Temperature (i) Name the enzyme that you used. (ii) Name the substrate with which the enzyme reacts. (i) Name of enzyme (ii) Name of substrate [must match enzyme]

17. Enzyme Temperature How did you vary the temperature? Water bath or ice or thermostat

18. Enzyme Temperature How did you keep a constant pH during the investigation? Buffer

19. Enzyme Temperature How did you measure the rate of activity of the enzyme? Time / change (colour, height of foam, etc.) OR sensor / data logger

20. Enzyme Temperature What was the result of your investigation? Activity increases or enzyme has an optimum or graph showing increase