Categories of Transport Across the Plasma membrane Cell membrane is selectively permeable to some molecules and ions Mechanisms to transport molecules and ions through the cell membrane >Non-carrier mediated transport Simple diffusion > Facilitated Diffusion >Via carrier >Channel Voltage, Chemical and Mechanical gating channel >Active Transport24 Categories of Transport Across the Plasma Membrane ➢Cell membrane is selectively permeable to some molecules and ions. ➢Mechanisms to transport molecules and ions through the cell membrane: ➢Non-carrier mediated transport. ➢Simple Diffusion. ➢Facilitated Diffusion: ➢Via Carrier ➢Channel ➢Voltage, Chemical and Mechanical gating channel ➢Active Transport