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15 Cards in this Set
- Front
- Back
- 3rd side (hint)
Diffusion |
The movement of molecules from an area of high concentration to an area of low concentration |
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Concentration Gradient |
The difference in the concentration of the molecules across a distance |
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Cytolosis |
Occurs when the cell bursts due to an osmotic imbalance that has caused excess water to enter the cell |
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Active Transport |
Molecules move against the concentration gradient (low to high) and the cell uses energy |
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Passive Transport |
Substances that cross the cell membrane w/o any input of energy by the cell (high to low) |
Enters with water |
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Plasmolosis |
The process in which cells lose water in a hypertonic solution |
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Surface Area's Effect on Diffusion |
Larger surface area = Faster diffusion rate |
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Hyper/hypo/iso-tonic solutions |
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Facilitated Diffusion |
Passive transport - Enter cell through their own ion channel |
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Sodium-Potassium Pumps |
Carrier protein that transports Na+ and K- UP their concentration gradients |
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Endocytosis |
Calls ingest external fluid, macromolecules and large particles |
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Exocytosis |
Process by which substances are released from a cell through a vesicle that fuses with the membrane and forces the substance out |
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Ion Channels and Carrier Proteins |
Move charged particles across the cell membrane by using chemical energy from ATP |
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Homeostasis |
The movement of a stable level of internal conditions |
Ex: Temperature |
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Equilibrium |
Concentration of the molecules will be the same throughout |
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