Semipermeable Membrane

Science / Chemistry / Semipermeable Membrane: A membrane that allows some but not all of the components in a mixture to pass through it. Semipermeable membranes are used in dialysis.

Membrane-Attack Complex (MAC)

Science / Biology / Membrane-Attack Complex (MAC): A large cylindrical multiprotein complex formed by the complement system; kills invading microorganisms by embedding in their plasma membrane, creating a pore through which fiuid fiows, ultimately cau MORE

Semipermeable Membrane

Science / Chemistry / Semipermeable Membrane: A membrane that allows some but not all of the components in a mixture to pass through it. Semipermeable membranes are used in dialysis. MORE

Osmosis

Science / Biology / Osmosis: Diffusion of water molecules across a membrane in response to differences in solute concentration. Water moves from areas of high-water/low-solute concentration to areas of low-water/high-solute conce MORE

Dialysis

Science / Chemistry / Dialysis: Dialysis is the separation of components in a mixture by passing them across a semipermeable membrane. MORE

Reverse Osmosis

Science / Chemistry / Reverse Osmosis: Solvent molecules flow spontaneously from a dilute solution through a semipermeable membrane to a more concentrated solution (osmosis). In reverse osmosis, pressure is applied to the more concentrated MORE

Osmotic Pressure

Science / Biology / Osmotic Pressure: Pressure generated by water moving by osmosis into or out of a cell. MORE

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