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TERMS 3. 4 + 3.5
TERMS 3. 4
| Term | Definition |
|---|---|
| Passive Transport | Movement of molecules across the cell membrane without energy input from the cell |
| Diffusion | Movement of dissolved molecules in a fluid or gas from a region of higher concentration to a region of lover concentration |
| Concentration Gradient | Difference in the concentration of a substance from one location to another |
| Osmosis | Diffusion of water molecules across a semipermeable membrane from an area oh higher water concentration to an area of lower water concentration |
| Isotonic | Solution that has an equal concentration of dissolved particles compared with another solution |
| Hypertonic | Solution that has a higher concentration of dissolved particles compared with another solution |
| Hypotonic | Solution that has a lower concentration of dissolved particles compared with another solution |
| Facilitated Diffusion | Diffusion of molecules assisted by protein channels that pierce a cell membrane |
| Active Transport | Energy-requiring movement of molecules across a membrane from a region of lower concentration to a region of higher concentration |
| Endocytosis | Uptake of liquids or large molecules into a cell by inward folding of the cell membrane |
| Phagocytosis | Uptake of a solid particle into a cell by engulfing the particle; see endocytosis |
| Exocytosis | Release of substances out of a cell by the fusion of a vesicle with the membrane |
Created by:
JuliaM2025
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