1[1 mark]
Which molecules are produced when enzymes break down proteins?
- Sugars
- Amino acids
- Fatty acids
- Glycerol
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Answer: B B amino acids (1)
2[3 marks]
Enzymes are biological catalysts. (a) Explain what is meant by a biological catalyst. (2) (b) Name the smaller molecules that enzymes join together to make a protein. (1)
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- (a) speeds up a reaction (1)
- without being used up / without being changed (1)
- (b) amino acids (1)