Cell Membrane Transport

Force measured in millivolts mv has polarity note

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Unformatted text preview: e differential (Vsubm) Force due to unequal distribution of anions and cations across cell membrane Charge separation = source of energy Direction of force depends on polarity, charge on particle Magnitude of force depends on: Magnitude of Vsubm Charge on particle Strength of force: measured in millivolts (mV) Has polarity (note: reference is always ICF) Electrochemical Driving Force Total force acting on particles Sum of chemical and electrical forces If chemical and electrical forces act in the same direction Electrochemical force acts in the direction of each Magnitude = sum of chemical force and electrical force If chemical and electrical forces act in opposite directions Electrochemical force acts in the direction of the stronger force Magnitude = Larger force – smaller Recall: Passive transport move from high to low force, spontaneous Active Transport: moved from low to high force,...
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