Card Set Information
How structure membrane related its function
Cell membrane structure and function
The outer membrane of a cell, composed of a bilayer of phospholipids in which proteins are embedded.
A double layer of phospholipids that forms the basis of all cellular membranes.
Net movement of molecules down a gradient from high to low concentration.
The movement of materials across a membrane down a gradient of concentration, pressure, or electrial charge without using cellular energy.
The diffusion of water, dissolved gases, or lipid soluble molecules through the phospholipid bilayer of a cellular membrane.
The diffusion of molecules across a membrane, assisted by protein pores or carriers embedded in the membrane.
The diffusion of water across a differentially permeable membrane, normally down a concentration gradient of free water molecules.
The transfer of subatnces across a cell membrane using cellular energy; includes active transport, endocytosis, and exocytosis.