Transport across plasma membrane

difference between solute concentrations across a membrane

concentration gradient

to shrink or shrivel

crenate

random movement of particles from their greater concentration to their lesser concentration

diffusion

to burst a red blood cell

hemolysis

higher concentration of solutes than in cytosol of cell

hypertonic solution

lower concentration of solute than in cytosol of cell

hypotonic solution

same solute concentration on both sides of membrane

isotonic solution

water moving through selectively permeable membrane

osmosis

substance dissolved in a solution

solute

a fluid that can contain dissolved substances

solvent