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How does movement occur across the cell membrane? (Passive Transport: type…
How does movement occur across the cell membrane?
Passive Transport: type of transport that does not require energy
Diffusion
Down concentration gradient
Facilitated Diffusion
Requires carrier proteins
Down concentration gradient
Osmosis
Semi-permeable membrane
Down concentration gradient
Filtration
Hydrostatic pressure
Active Transport: type of transport that requires energy
Sodium-Potassium Pump
3 Na+ out of
2 K+ into
Endocytosis
Materials brought into
Phagocytosis
Cellular eating
Pinocytosis
Cellular drinking
Receptor-mediated endocytosis
Selective process
Receptor proteins
Exocytosis
Materials exported
Types of Solutions Affecting Water Movement
Hypertonic Solution
Cell shrinks
Water out of cell
Hypotonic Solution
Cell expands
Water into cell
Isotonic Solution
Net water movement