This is a quick revision quiz on the second chapter of the AQA student book about enzymes and digestion.

1. AS AQA Biology
UNIT 1
Chapter 2 Revision Quiz
Enzymes and the digestive system
Total: ___ / 26
___ %

2. 1. Which part of the digestive system absorbs water? (1)
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2. What does the pancreas produce that helps with digestion?
(1)
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3. What are the two stages of digestion? (2)
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4. What is it called when you split up a larger molecule using
water? (1)
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5. What chemical do you use to test for reducing sugars and
what colour does it turn with high sugar? (2)
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6. What bond is formed when two monosaccharide’s join to
become a disaccharide? (1)
……………………………………………………………….......
7. Draw alpha glucose? (3)

3. 8. Briefly describe the test for non-reducing sugars? (2)
……………………………………………………………….......
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9. Name the enzymes involved in the breakdown of starch?
(2)
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10. What sort of reaction is needed to produce a polypeptide
from many amino acid monomers? (1)
……………………………………………………………….......
11. What sorts of bonds are formed during the secondary
structure in proteins? (1)
……………………………………………………………….......
12. Give an example of a fibrous protein (1)
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13. Which part of an enzyme does the substrate fit into? (1)
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14. How do enzymes catalyse a reaction? (1)
……………………………………………………………….......

4. 15. Name the two models of how enzymes bind with
substrates. (2)
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16. How does a change in pH affect the active site of an
enzyme? (2)
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17. What is the difference between a competitive and noncompetitive inhibitor? (2)
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