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Green book

Lesson 4

TermDefinition
Selectively permeable a property of cell membranes that allows some substances to pass through, what others cannot.
Passive transport The movement of materials through a cell membrane without using energy
Diffusion The process by which molecules move from an area of higher concentration to an area of lower concentration
Osmosis the diffusion of water molecules through a selectively permeable membrane
Active transport The movement of materials through a cell membrane, using cellular energy
Explain how materials move in and out of cells Materials move in and out of a cell through the cell membrane
Know the different types of membrane transport and how each works Active transport uses energy or passive transport happens automatically and does not use energy
Explain the difference between diffusion and facilitated diffusion facilitated diffusion helps molecules move across while regular diffusion does not
Created by: user-1995236
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