1. (i) Name the parts indicated by guidelines '1' to '5'   2. (ii) Is the root hair cell unicellular or multi-cellular?   3. (iii) Draw a labelled diagram of the root hair cell as it would appear if some fertilizer is added to the soil close to it.   4. (iv) Name the process responsible for the entry of water molecules from the soil into A1 and then A 2.   5. (v) What pressure is responsible for the movement of water in the direction indicated by arrows?   6. (vi) How is this pressure set up?