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KembaraXtra - Medical Terms - active transport
Active transport is a biological process in which certain substances move across a cell membrane using energy supplied by the cell. Unlike passive diffusion, this process allows molecules or ions to move against their concentration gradient—from an area of lower concentration to an area of higher concentration. Because this movement requires energy, it depends on metabolic processes within the cell.
Active transport is essential for maintaining normal cellular function. It allows cells to absorb important substances such as amino acids, ions, and certain drugs even when the concentration inside the cell is already high. The process can be disrupted by substances that interfere with cellular metabolism, including high doses of drugs like digitalis, which affect the energy systems that power membrane transport mechanisms.
Active transport is a biological process in which certain substances move across a cell membrane using energy supplied by the cell. Unlike passive diffusion, this process allows molecules or ions to move against their concentration gradient—from an area of lower concentration to an area of higher concentration. Because this movement requires energy, it depends on metabolic processes within the cell.
Active transport is essential for maintaining normal cellular function. It allows cells to absorb important substances such as amino acids, ions, and certain drugs even when the concentration inside the cell is already high. The process can be disrupted by substances that interfere with cellular metabolism, including high doses of drugs like digitalis, which affect the energy systems that power membrane transport mechanisms.
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