Substance 'X' is the charged molecule of small molecular weight. It is found at higher concentrations outside of cells than inside. How can substance 'X' enter the cells?

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TestHub · Accepted Answer

The net movement of material from an area of high concentration of the substance to an area with a low concentration of the substance is called diffusion. So the concentration of the substance is higher at the outside than inside so the movement of molecules occurs from higher to lower concentration through a channel. There is no involvement of ATP during this process so it is not active transport.

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