Summary:
- The cell membrane is selectively permeable, meaning only some molecules can get through.
- The composition of the cell membrane helps to control what can pass through it.
- The membrane is made of a double layer of phospholipids (a "bilayer") and proteins.
- The fluid nature of the membrane is important in maintaining homeostasis.
- It allows the proteins in the membrane to float to areas where they are needed.
- Use the resources below to answer the following questions: Active and Passive Transport at http://www.youtube.com/watch?v=kfy92hdaAH0 (6:13)