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6 Cards in this Set
- Front
- Back
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Define membrane potential |
The difference in electrical potential between the interior and exterior of the cell. (Interior is usually more negative at resting potential) |
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Secondary Active Transport |
These transporters move two molecules, one against a gradient, one with a gradient. |
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Types of Secondary active transporters |
Antiporter: Molecules move in opposite directions. |
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ATP Pump |
Uses energy from hydrolysis of ATP to move molecules against a gradient. important for maintaining medium levels of particular ions in cell (eg Calcium and Sodium). |
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Transport Proteins |
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Nernst Potential/Reversal Potential |
Membrane potential at which there is no net flow of that particular ion across membrane. |
