ch5 term - active transport The energy-dependent transport...

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active transport  The energy-dependent transport of a substance across a biological membrane against  a concentration gradient—that is, from a region of low concentration (of that substance) to a region of  high concentration. (See also primary active transport, secondary active transport; contrast with facilitated  diffusion.)  antiport  A membrane transport process that carries one substance in one direction and another in the  opposite direction. (Contrast with  symport .)  aquaporin  A transport protein in plant and animal cells through which water passes in osmosis.  carrier protein   See  Carrier  (1).  cell adhesion molecules  Molecules on animal cell surfaces that affect the selective association of cells  during development of the embryo.  cell junctions  Specialized structures associated with the plasma membranes of epithelial cells. Some  contribute to cell adhesion, others to intercellular communication.  channel protein  A membrane protein that forms an aqueous passageway though which specific solutes  may pass.  desmosome  (dez´ mo sowm) [Gk.  desmos : bond +  soma : body] An adhering junction between animal  cells.  endocytosis  A process by which liquids or solid particles are taken up by a cell through invagination of  the plasma membrane. (Contrast with 
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