Creado por Nancy Tucker
hace casi 5 años
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Pregunta | Respuesta |
Homeostasis | Maintaining a balance in an organism’s environment; keeping stable conditions. |
The Cell membrane helps maintain homeostasis and it is a PHOSPHOLIPID BILAYER | |
The two major components of the cell membrane are lipids and proteins | |
Endocytosis | Particles move INTO the cell |
Exocytosis | This causes the cell to expand (swell) WATER moves into the cell Example: Distilled water |
Hypertonic Solution | Causes a cell to shrink (shrivel) WATER leaves the cell Example: Salt water |
Isotonic Solution | The cell stays the same |
Passive Transport | NO energy is needed |
Simple Transport | The movement of molecules from areas of high concentration to areas of low concentration |
Facilitated Diffusion | Molecules move from a high concentration to a low concentration, but with help of a transport (carrier) protein |
Osmosis | Diffusion of water |
Active Transport | Energy is required to move molecules from low to high. It uses transport proteins (sometimes called pumps) Examples: sodium (NA) Potassium (K) |
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