Part 2: Passive and Active Transport

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Presentation transcript:

Part 2: Passive and Active Transport 8.1 Cellular Transport Part 2: Passive and Active Transport

Passive Transport Some things can pass through the plasma membrane by diffusion Water, lipids

Passive Transport Some things are too big or won’t pass through the bilipid layer Transport proteins can let through if going with concentration gradient Facilitated diffusion Sugars, amino acids

Passive Transport

Active Transport Movement of materials through a membrane against concentration gradient Uses energy

Active Transport

Transport of large particles Endocytosis – cell surrounds and takes in particles from outside Exocytosis – materials moved out of the cell

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