AS AQA BiologyUNIT 1

Chapter 2 Revision QuizEnzymes and the digestive system

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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)

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7. Draw alpha glucose? (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)

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11. What sorts of bonds are formed during the secondary structure in proteins? (1)

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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)

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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 non-competitive inhibitor? (2)

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