Establishing Membrane Potential Flashcards
What is potential energy?
The ability to do work → gradient (difference between two points)
Gradient-driven flux requires?
- Gradient (concentration)
2. Carrier or pathway
Fick’s Law is used to find?
Net diffusional flux
Fick’s Law equation
Flux = DA(concentration difference / thickness of diffusion barrier)
Net diffusional flux depends on?
- Concentration gradient
- Area
- Coeffecient
Net diffusional flux coefficient accounts for?
- Molecular radius
- Solution viscosity
- Gas constant
- Temperature
Ohm’s Law is used to find?
Current (electrical flux)
Current is quantitative measure of?
Electrical flux
I represents?
Current
Ohm’s Law (2 forms)
Current = voltage / resistance
Current = voltage * conductance
Voltage is quantitative measure of?
Gradient
Conductance and resistance are quantitative measures of?
Pathway permeability
Unit of currents
Amps
Amps = ?
Coulombs / unit of time
Unit of voltage (gradient)
Volts