lunes, 5 de octubre de 2009

Key Terms (Page 80)

Selectively Permeable: A property of cell membranes that allows some substances to pass trough, while others cannot.
Diffusion: The process by wich molecules come from an area of higher concentration to an area of lower concentration.
Osmosis: The diffusion of water molecules through a selectively permeable membrane.
Passive Transport: The movement of materials through a cell membrane without using cells energy.
Active Transport: The movement of materials through a cell membrane using energy.
Mauricio Pérez Chávez
M13

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