Bio Cell Transport Word Scramble
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Term | Definition |
Osmosis | Movement of a solvent (usually water) from a low solute concentration to a high solute concentration in order to equalize the concentration of the two solutions. No energy required. |
Diffusion | Movement of both solvent and solute particles from high concentration to low concentration in order to equalize the concentration of the solution. No energy required. |
Facilitated Diffusion | Movement of specific molecules down a concentration gradient (from high concentration to low concentration) passing through the membrane via a specific carrier protein. No energy required. |
Active Transport | Movement of a substance across a cell membrane against its concentration gradient from lower concentration to higher concentration. Energy required. |
Endocytosis | Movement of very large molecules (into the cell) across the cell membrane through the fusion of vesicles. Energy required. |
Exocytosis | Movement of very large molecules (out of the cell) across the cell membrane through the fusion of vesicles. Energy required. |
Solute | Substance dissolved in another substance. |
Solvent | The substance that dissolves another substance. |
Isotonic solution | Concentration (amount) of solutes is equal on both sides of the cell membrane; this allows the flow of water through the cell membrane to be equal. |
Hypertonic solution | Concentration (amount) of solutes OUTSIDE of the cell membrane is GREATER than inside cell; this promotes a greater flow of water outside the cell thus leading to cell shrinking. |
Hypotonic solution | Concentration (amount) of solutes OUTSIDE of the cell membrane is LESS than inside the cell; this promotes a greater flow of water inside the cell thus leading to cell bursting. |
Homeostasis | process by which biological systems, including the cell, tend to maintain stability |
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