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There is a greater concentration of Na plus outside and there is a greater concentration of K plus inside the cell. When the stimulus is delivered, the permeability of the membrane is changed, and Na plus diffuses into the cell, initiating the depolarization of the membrane.
The concentration of DDT in the fish is 430,000 times greater than the concentration of DDT in the water.
The rate of diffusion is directly related to the concentration of gradient. For example, the greater the amount between the concentration of the areas, the greater the greater to difference in diffusion.
The concentration of dissociable OH- ions is a measure of the basicity of the substance. Greater the concentration of hydroxyl ions, greater is it alkaline.
the movement of particles from areas of greater concentration to area of lesser concentration.
Diffusion
...greater concentration to an area of lesser concentration.
Depends on the pH, at low pH (below pH 7), the H+ ion concentration is greater, and high pH the OH- ion concentration is greater
Passive Transport
The Ca2+ ion concentration of the sarcoplasmic reticulum will be greater in a resting muscle
A hypertonic environment with regard to the cell.
A solution in which the salt concentration is greater outside the cell than inside the cell is known as