Active Transport High To Low Extra Quality Jun 2026

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Active transport is a type of transport across cell membranes that requires energy input from the cell. Unlike passive transport, which relies on concentration gradients and does not require energy, active transport involves the movement of molecules against their concentration gradient. In other words, active transport enables cells to move molecules from an area of low concentration to an area of high concentration, or from high to low concentration, against the natural direction of diffusion. active transport high to low