1. Lesson Starter
Write a sentence describing temperature and enzymes including the following words:
Enzyme activity low temperature
high temperature
reaction denature

2. Learning Outcomes
In today’s lesson you will be trying past paper questions.
By the end of this lesson you should aim to:
Assess your learning of enzymes
Familiarise yourself with exam format through past paper questions
Work cooperatively in a group

3. In groups of 4 you will complete a circus of past paper questions, starting with multiple choice.
You should not move on to the next set of questions until everyone in your trio understands the question.
15 minutes for 20 questions!

4. 1. 4.
__________________ 2.
_________ 3.
__________________
______

5. 5.
______

6. 6. 7. __ __

7. 8 9. __ 10 __ __ 11 __

8. 12.
13. __ 14 __ __

9. 15. __
16. __

10. 17. __

11. 18.
19. __ __

12. 20. __

13. Now try longer answer questions!
You should not move on to the next set of questions until everyone in your trio understands the question.
Rest of the lesson

14. 1. Z X Y 3
____
Its shape is permanently changed.

15. 2.
Its active site will only allow one enzyme to join to it. It is shaped like a lock and the substrate fits into this like a key.
It becomes denatured. pH
oxygen
hydrogen

16. 3.
As pH increases from 4 to 8 trypsin activity increases as is shown by the increase in the clear jelly (from 2 to 10mm) as pH further increases to 12 trypsin activity decreases (7mm of clear jelly).
2mm

17. 4. 9
pH of hydrogen peroxide solution
to make it more reliable

19. 5.
oxygen
Temperature and concentration of the hydrogen peroxide solution.
water
Use boiled liver in which the enzyme has been denatured.
Measure the volume of oxygen produced/ height of foam if you added washing up liquid too.

20. 6.

21. 7.

22. 8.

23. 9.

24. 10.

25. 11.

26. 12.

27. 12.

28. 12.

29. 13.

30. 13.

31. 14.

32. 15.

33. Lesson Recap
Enzyme hangman

34. Torrance Standard Grade Biology.
Answer Qs 1 and 2 on p235 in full sentences.
Ten minutes