How would osmosis cause water to be absorbed into the root hair cell?
~ Active transport would increase the conc. of mineral ions and other nutrients in the cell.
~ Due to the high potential of them, it creates a situation where the water potential in the cell is lower compared to the outside environment, creating a conc. gradient
~ This stimulates osmosis as water molecules will move from the outside of the cell (like the soil or surrounding cells) to the inside through the the semi-permeable membrane.
~ It equalises the water potential on both sides of the membrane.
~ This would also regulate water movement between cells.