3.2

Question 1

Functions of the Plasma Membrane

Answer 1

1. Defines boundaries of cell
2. Governs interactions with other cells
3. Controls passages of materials into and out of cells

Question 2

What are the two broad classes of membrane proteins

Answer 2

1. Transmembrane: Pass completely through phospholipid bilayer
2. Peripheral Proteins: Adhere to either inner or outer face of membrane