| A | B |
|---|
| What is the plasma membrane composed of? | 2 layers - lipids with protein molecules throughout |
| the phospholipid end that is outside the membrane and LIKES water | hydrophilic |
| the phospholipid end the is inside the membrane and DOES NOT LIKE water | hyrophobic |
| one of the 2 types of proteins in the membrane - acts as the transport channel | integral |
| one of the 2 types of proteins in the membrane - acts as the recognition site | peripheral |
| a molecule found in animal membranes that provides support structure | cholesterol |
| means that only certain materials can pass through the membrane (for example water will flow but larger molecues like starch will not) | semi-permeable |
| an organelle that surrounds a cell and controls the movement of material in and out of the cell | plasma membrane |
