membrane transporters of ions and molecules across cell membranes.

membrane transporters ions molecules cell membranes types channels: aquaporin gated ion channel symporter antiporter membrane transport transporters aquaporin channel receptor cell diffusion ion molecule symporter water mechanism protein simple action potassium pump sodium structure cellular cytoplasm gated lipid medicine plasma anatomy antiporter bilayer biology close education extracellular health hormone medical nerve neuron open organ phospholipid potential science space transmembrane