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Transport across cell membranes

Transport across cell membranes

Author: Robin Smith
Description:

The students will understand the difference between diffusion, facilitated diffusion, active transport, phagocytosis, and exocytosis.

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Tutorial

Bozeman's "Transport Across Cells"

Paul Andersen describes how cells move materials across the cell membrane. All movement can be classified as passive or active. Passive transport, like diffusion, requires no energy as particles move along their gradient. Active transport requires additional energy as particles move against their gradient. Specific examples, like GLUT and the Na/K pump are included.

Diffusion, Facilitated Diffusion, and Active Transport