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The gradient is a fancy word for derivative, or the rate of change of a function. Itâs a vector (a direction to move) that. 1  Points in the direction of greatest increase of a function (intuition on why)  Is zero at a local maximum or local minimum (because there is no single direction of increase)
Concentration gradient is defined as the variation in the concentration of solute, from one region to another, in a solution. While studying the movement of particles in a medium, you may come across various chemistry terms. To mention a few, such terms include concentration gradient, diffusion and osmosis.