Across
- 3. Are cell membranes permeable?
- 6. Where do the phospholipid heads face?
- 7. How many types of difussion are there?
- 8. Do cell membranes communicate with other parts of the cell?
- 9. what is the source of energy needed for active transport?
Down
- 1. What are the type of channels used?
- 2. What does the ATP leave at the sodium potassium pump?
- 4. What is the form of diffusion that involves water?
- 5. How many phospholipid bilayers are in a phospholipid membrae?