Transport of Substances Into and Out of Cells (OCR A-Level Biology A): Flashcards
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Passive transport
Passive transport
Movement down conc. gradient without energy
Active transport
Active transport
Movement against conc. gradient using ATP
Diffusion
Diffusion
Net movement of particles down conc. gradient
Facilitated diffusion uses
Facilitated diffusion uses
Channel or carrier proteins
Osmosis
Osmosis
Net water movement across partially permeable membrane
Water moves from __ to __ water potential
Water moves from __ to __ water potential
Higher to lower
Water potential of pure water (kPa)
Water potential of pure water (kPa)
0 kPa
Plant cell in hypotonic solution becomes
Plant cell in hypotonic solution becomes
Turgid
Plasmolysis
Plasmolysis
Cytoplasm pulls away from cell wall
Phagocytosis vs pinocytosis
Phagocytosis vs pinocytosis
Cell eating (large particles) vs cell drinking (fluids)