Question

A concentration gradient exists in a solution when the concentration of solutes in the solution is.

Answer 1

When the concentration of solutes in one part of a solution is more than the concentration of solutes in another part of the solution, a concentration gradient is said to exist.

Concentration gradient can be demonstrated by adding salt to a glass of water. At first, not every part of the water is salty, only the region where the salt was added. Here, a concentration gradient exists. Overtime, the Na+ and Cl- move down the concentration gradient, making the salt concentration throughout the water equal.

In nature, cells use concentration gradient to store energy. Concentration gradient also helps to facilitate movement and transport within and out of the cell through osmosis and diffusion.

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