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7_3 and 7_4
biology test
| Term | Definition |
|---|---|
| passive transport | -movement of materials across membrane -no energy -high to low concentration |
| exocytosis | -materials exiting/leaving cell |
| pinocytosis | -forms tiny pockets -pinch off to form vacuole |
| phagocytosis | -extensions of cytoplasm surrounding particles -cell engulfs |
| phagocytosis & pinocytosis | -two examples of endocytosis |
| endocytosis | -materials entering the cell |
| bulk transport | -larger molecules -transported across cell mebrane |
| calcium, sodium, potassium | -proteins move ________,________,and________ across the cell membrane |
| endocytosis & exocytosis | -examples of active transport |
| transport proteins | -active transport of small molecules across cell membrane -"protein pumps" |
| active transport | -movement of materials across cell membrane using energy -requires energy -low to high concentration |
| selective permeability | -picky -allows some substances to cross while others cant |
| hypotonic solution on cell | -water goes in so the cell begins to burst |
| hypertonic solution on cell | -water goes out the cell causing it to shrink |
| isotonic solutions on cell | -water goes in and out making it equal |
| osmotic pressure | -force exerted by movement of water in and out of cell |
| hypotonic | -solutions are below strength |
| hypertonic | -solutions are above strength |
| isotonic | -solutions are the same strength |
| osmsis | -example of facilitated diffusion |
| osmosis | -movement of water across membrane by facilitated diffusion |
| aquaporins | -water channel protein |
| protein channels | -carriers that allow molecules to pass easily |
| facilitated diffusion | -use protein channels to allow particles to cross cell membrane |
| no | -diffusion requires ________ additional energy |
| equilibrium | -substances on both sides of membrane are the same |
| diffusion | -movement of particles from high to low conentration |
| examples of passive transport | -diffusion & facilitated diffusion |
| constant/stable | -cell membrane keeps internal conditions________ |
Created by:
lexiegrace123
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