1. What am I ? Enzymes quiz www.kreducate.co.uk Click here to begin BEWARE ! One mistake and you have to start again !

2. Using the quiz The next ten slides have the quiz questions After this, you can see the same questions with their answers and a brief explanation It is MUCH better revision to try the quiz first ! Click here to go straight to answer version Click here to start quiz

3. Breaks down starch into sugars Amylase True for … Protease Lipase All of them

4. Well done

5. Generally work best at 37 o C Amylase True for … Protease Lipase All of them

6. Well done

7. Produces amino acids Amylase True for … Protease Lipase All of them

8. Well done

9. Act as a catalyst to help digest food Amylase True for … Protease Lipase All of them

10. Well done

11. Works best in low pH ( acid conditions) Amylase True for … Protease Lipase All of them

12. Well done

13. Break down large particles into smaller ones Amylase True for … Protease Lipase All of them

14. Well done

15. Helps change fats into fatty acids and glycerol Amylase True for … Protease Lipase All of them

16. Well done

17. Can change shape at high temperatures Amylase True for … Protease Lipase All of them

18. Well done

19. Made of proteins folded into a special shape Amylase True for … Protease Lipase All of them

20. Well done

21. Help to make glucose available in the blood stream Amylase True for … Protease Lipase All of them

22. Well done ! You have got all the questions correct. Click here to see answer section Click here to end quiz

23. Answer section This will take you through the same questions again, showing you an answer slide then an explanation slide. It is much better revision if you think of the explanation before look at the relevant slide. Click here to start answer section

24. Breaks down starch into sugars Amylase True for … Starch is a carbohydrate. Amylase is the enzyme which breaks it down to make simple sugars like glucose

25. Generally work best at 37 o C True for … All of them This is body temperature and digestive enzymes work best at this temperature

26. Produces amino acids True for … Protease Protease is the enzyme for proteins and you get amino acids when proteins are broken up

27. Act as a catalyst to help digest food True for … All of them A catalyst speeds up a chemical reaction without being part of the actual reaction. This is in effect a definition of a digestive enzyme

28. Works best in low pH ( acid conditions) True for … Protease Protease is produced in the stomach which is acidic. Most proteins are broken down here.

29. Break down large particles into smaller ones True for … All of them This is in effect a definition of digestion. All enzymes help this to happen

30. Helps change fats into fatty acids and glycerol True for … Lipase Lipase is the enzyme which works for fats. Fats are large molecules, made up of the smaller particles called fatty acids and glycerol

31. Can change shape at high temperatures True for … All of them The enzyme no longer works because the “lock and key” do not match. This change of shape is also called being “denatured”.

32. Made of proteins folded into a special shape True for … All of them Digestive enzymes are in fact proteins. A bit confusing ! The special shape makes the “lock and key” match

33. Help to make glucose available in the blood stream Amylase True for … Glucose is produced when starch is broken down by amylase during digestion. It must pass into the bloodstream so it is available for respiration

34. Click here to try the quiz without answers Click here to end quiz This is the end of the answer section

35. Spare slide Amylase True for … Protease Lipase All of them

36. xx True for … xx

37. Sorry ! That answer was wrong. Click here to start again Click here to leave quiz Click here to go to answer section