Transport across cell membranes

Descripción

National 5 (1.2 Transport across cell membranes) Biology Fichas sobre Transport across cell membranes, creado por kalina el 02/02/2014.
kalina
Fichas por kalina, actualizado hace más de 1 año
kalina
Creado por kalina hace casi 11 años
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Resumen del Recurso

Pregunta Respuesta
What is the cell membrane composed of? Lipid and protein.
What two words can describe the cell membrane? Selectively permeable.
What is the difference in a concentration of a substance called? The concentration gradient.
What is passive transport? Substance doesn't require additional energy to move. The movement of molecules down the concentration gradient (from high to low)
What are the two examples of passive transport? Diffusion and osmosis.
What is diffusion? The movement of substances from a high concentration to a low concentration down a concentration gradient.
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