Transport Physiology

Question 1

membrane permeability

Answer 1

selective passage of hydrophilic solutes across the hydrophobic barrier mediated by membrane transport proteins

Question 2

electrochemical potential

Answer 2

partial molar free energy of the solute or the potential to do work when a difference in electrochemical potential exists across the cell membrane.

Question 3

thermodynamic equilibrium

Answer 3

passive transport mechanisms mediate equal unidirectional solute transport in both directions resulting in no net transport.