Cell Membrane Diffusion

22 terms by cqin

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pinocytosis

a specific term referring to the movement of small particles or liquids into the cell

active transport

transportation of materials that require the use of cell energy

facilitated diffusion

diffusion that moves substances passively through the membrane from high concentrations to low concentrations using CARRIER PROTEINS

phagocytosis

a specific term referring of the movement of large particles or solids into the cell

isotonic solutions

solutions that have equal concentrations of solutes inside and outside the cell

hypotonic solutions

solutions that have lower concentrations of solutes outside the cell

hypertonic solutions

solutions that have higher concentrations of solutes outside the cell

passive transport

transportation of materials that does NOT require the use of cell energy

concentration gradient

a term that refers to the difference between the high and low concentrations

endocytosis

a general term that refers to the bulk transport of large objects into the cell

lyse

the burst of animal cells

turgor

the water pressure that has been built up in the plant cells

exocytosis

the bulk movement of materials out of the cell

permeable

Cell membrane are selectively ______, which means that they allow only certain substances to pass through

pressure

diffusion rates may be affected by: concentration, temperature, and ______

contractile vacuoles

the special organelles that are pumped out excess water by some cells

carrier

special protein molecules that move some larger molecules through the membrane

cytolysis

the bursting of cells due to osmosis

osmosis

the diffusion of water through a selectively permeable membrane

brownian motion

the random motion of molecules

plasmolysis

the shrinking of cells due to osmosis

diffusion

the random motion of molecules that occurs from the region of high concentration to the region of lower concentration

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