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What drives simple diffusion in/out of the cell?Group of answer choicestransmembrane pumpsATP hydrolysisADP hydrolysisphosphorylated carrier proteinsan electrochemical gradientNext

Question

What drives simple diffusion in/out of the cell?Group of answer choicestransmembrane pumpsATP hydrolysisADP hydrolysisphosphorylated carrier proteinsan electrochemical gradientNext

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Solution

Simple diffusion in/out of the cell is driven by an electrochemical gradient.

Here's a step-by-step explanation:

  1. Simple diffusion is a passive process, meaning it does not require any energy input from the cell.

  2. It is driven by the electrochemical gradient, which is a form of potential energy stored in the difference in concentration of an ion or molecule across the cell's membrane.

  3. This gradient is created by the difference in the concentration of ions or molecules inside and outside the cell.

  4. Molecules or ions will naturally move from an area of high concentration to an area of low concentration, which is what we call diffusion.

  5. In the case of the cell, molecules or ions will move across the cell membrane until the concentration is equal on both sides of the membrane. This movement is what

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