Passive Transport

Passive Transport passive transport Passive transport does not require energy down concentration gradients Often, substances have to be moved from a low to a high concentration active transport Transport Without Energy Expenditure By The Cell Passive transport occurs when substances cross the plasma membrane without any input of energy from the cell

active transport Passive transport: membrane channels The sodium-potassium pump sets the membrane potential of the neuron by keeping the concentrations of Na+ and K+ at

passive transport Passive transport is defined as movement of a solute from a region of high electrochemical potential on one side of the cell membrane to a region of lower 5 Active transport requires carrier proteins In passive transport carrier proteins are not involved However, in facilitated diffusion