8.Explain the meaning of concentration gradient as it pertains to movement of substances into and out of cells.
9.Explain diffusion and osmosis.
10.What molecule is thought to facilitate the movement of water molecules through a plasma membrane?
11.Explain the difference between active and passive transport across the plasma membrane. Provide examples that occur in the human body.
12.Explain the impact to a cell if placed in a hypertonic solution; include a definition of hypertonic solution and why the change occurs.
13.Identify a similarity and difference between facilitated transport and active transport. Do not state that both move substances across the membrane.