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15 Cards in this Set

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A(n) ____ allows only certain molecules to pass through it
semipermeable
the movement of molecules from an area of high concentration to an area of low concentration is ____
diffusion
a(n) ____ is the difference between the concentration of a particular molecule in one area and the concentration in an adjacent area
concentration gradient
the diffusion of water across a semipermeable membrane is called ____
osmosis
in a(n) ____, the concentration of solutes outside the cell is higher than the concentration of solutes inside the cell
hypertonic solution
the concentration of solutes in a(n) ____ is lower outside the cell than the concentration of solutes inside the cell
hypotonic solution
the concentratin of solutes in a(n) ____ equals the concentration of solutes inside the cell
isotonic
the use of carrier proteins for diffusion is called ____
facciliated diffusion
the process of ____ is defined as the use of energy to carry molecules across the membrane
active transport
in the process of ____, large molecules, food, and other substances are packaged and moved across the membrane
bulk transport
how do facilitated diffusion and active transport differ?
faciliated diffusion doesn't need energy while active transport requires energy
how do endocytosis and exocytosis differ?
endocytosis takes things into the cell while exocytosis moves things out of the cell
What is the difference between pinocytosis and phagocytosis?
pinocytosis lets liquid into the cell while phagocytosis lets particles into the cell
what would happen to a cell in a hypertonic solution?
it would shrink
what would happene to a cell in a hypotonic solution?
it would burst