Charged ions are traveling through a cell membrane with the concentration gradient. This is an example of

In living systems, global flow moves water and solutes from one part of a multicellular organism to another, while diffusion moves molecules and ions in, out, and through the cell.

Diffusion involves the random movement of individual molecules or ions and results in the net movement down a concentration gradient.

This process is more efficient when the surface area is greater in relation to the volume, when the distance involved is short and when the concentration gradient is pronounced.

When diffusion takes place between compartments separated by a membrane permeable to that solute, it is called simple diffusion.

When substances cross the bilayer by a protein located in the membrane, which can be a channel protein in the case of ions or a transporter or carrier protein, it is called facilitated diffusion.

Therefore, we can conclude that charged ions are traveling through a cell membrane with the concentration gradient. This is an example of diffusion.

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