Once you have had a shot at the questions above, have a go at these questions
1. List 3 components of the plasma membrane?
2. The phospholipid has two parts a head and tail. Which part is hydrophobic and which is hydrophilic? Which part is polar and which is non-polar
3. Why do phosophlipids have a kink in one of their tails?
4. Explain the roll of a plant cells Vacuole