concentrationgradient: Definition from Answers.com concentrationgradient n. The graduated difference in concentration of a solute per unit distance through a ... Does a cell have a normal gradientconcentration? ...
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ConcentrationGradients What is a concentrationgradient? ... Bacteria can bias their walks based on the concentrationgradient of a particular chemical. ...
Transport Across Membranes Net movement against a concentrationgradient can be accomplished only via ... Concentrationgradient. Cotransport. Diffusion. Diffusion across membrane ...
Aq.concentrate This maintained a greater concentration. gradient between the water and the sur ... larger concentrationgradient is main- tained than in the motionless cup in which ...
Action potential - Wikipedia, the free encyclopedia ... pore down the transmembrane concentrationgradient for that particular ion. ... of the ion down its concentrationgradient becomes equal to the molecular force ...
Osmosis and Diffusion - A Tutorial Diffusion proceeds until the concentrationgradient no longer exists. ... Osmosis again occurs because a concentrationgradient exists and the membrane is ...