Activity 3: Reviewing Important Concepts

1.  What are proteins?

2.  What are they composed of?

3.  Why are they important?

4.  What do proteins do that other cell chemicals cannot do?

5.  Summarize the steps by which we extract and purify proteins.

6.  Diagram the structure of a typical amino acid.

7.  What causes some parts of proteins to be embedded in membranes and others not?

8.  Explain the differences between primary, secondary, and tertiary structure of proteins.