What is the characteristic of a cell membrane that controls which substance can enter and exit the cell

selective permeability

a. by using fur or clothes to trap heat energy near the body

plants absorb water from the soil by osmosis. root hair cells are adapted for this by having a large surface area to speed up osmosis. the absorbed water is transported through the roots to the rest of the plant where it is used for different purposes: it transports dissolved minerals around the plant.