Cellular Transport Worksheet Name Block_____ Section A: Cell Membrane Structure 1. Label the cell membrane diagram. You’ll need to draw lines to some of the structures. **Draw cholesterol molecules in the membrane.** channel proteins phosphate hydrophilic head carbohydrate chain
The plasma membrane, also known as the cell surface membrane or plasmalemma, defines the boundary of the cell. It is a phospholipid bilayer with embedded proteins that encloses every living cell. It regulates the movement of materials into and out of the cell and facilitates electrical signaling between them.