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osmosis and difusion

QuestionAnswer
What is diffusion? Process by which molecules tend to move from an area where they are more concentrated to an area where they are less conccentrated.
What is equilibrium? When the concentration of a solute is the same throughout a solution.
What is osmosis? Diffusion of water through a selectively permeable membrane.
What is isotonic? When the concentration of two solutions is the same.
What is hypertonic? When comparing two solutions, the solution with the greater concentraion of solutes.
What is hypotonic? When comparing two solutions, the solution with the lesser concentraion of solutes.
What is lipid bilayer? the composition of nearly all membranes is a double-layered sheet.
What is cell membrane? thin, flexible barrier around the cell.
What is cell wall? strong supporting layer around the cell membrane in plants, algae, and some bacteria.
What is concentration? the mass of solute in a given volume of solution, or mass/volume.
Why does the starch stay on one side of the membane, while the iodine moves? The starch is too large to pass through the pores in the membrane.
Why does a plant cell not burst when placed in water? The cell wall supports it and doesnt let it burst.
Why dont cells pop in the bloodstream? blood provides an isotonic environment for cells.
Created by: ausshe23
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