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)
……………………………………………………………….......
2. What does the pancreas produce that helps with digestion?
(1)
……………………………………………………………….......
3. What are the two stages of digestion? (2)
……………………………………………………………….......
4. What is it called when you split up a larger molecule using
water? (1)
……………………………………………………………….......
5. What chemical do you use to test for reducing sugars and
what colour does it turn with high sugar? (2)
……………………………………………………………….......
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)
……………………………………………………………….......
……………………………………………………………….......
……………………………………………………………….......
9. Name the enzymes involved in the breakdown of starch?
(2)
……………………………………………………………….......
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)
……………………………………………………………….......
13. Which part of an enzyme does the substrate fit into? (1)
……………………………………………………………….......
14. How do enzymes catalyse a reaction? (1)
……………………………………………………………….......
4. 15. Name the two models of how enzymes bind with
substrates. (2)
……………………………………………………………….......
……………………………………………………………….......
16. How does a change in pH affect the active site of an
enzyme? (2)
……………………………………………………………….......
……………………………………………………………….......
17. What is the difference between a competitive and noncompetitive inhibitor? (2)
……………………………………………………………….......
……………………………………………………………….......