Membrane transport notes

biology cell membrane notes notability ipad notes osmosis diffusion active transport

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If a cell were a house, the plasma membrane would be walls with windows and doors. Moving things in and out of the cell is an important role of the plasma membrane. It controls everything that enters and leaves the cell. There are two basic ways that substances can cross the plasma membrane: passive transport, which requires no energy; and active transport, which requires energy.

Movement of drugs across biological membranes by passive diffusion, facilitated transport and active transport. Aquaporins allow passage of water and urea but not drugs. #Pharmacology #Nursing #Medicine