1.

• Refers to a class of large molecules that are very importantly to biology.

2.

• The four main types of macromolecules are proteins, lipids,carbohydrates and nucleicacids.

3.

• They are broken down the same way.

4

5.

B1.

• It takes 20 amino acids to make up1 protein.

2.

3.

4.

5.

• Enzyme-substance produced by a living organisium.

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