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Question

Are channel proteins specific?


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Solution

Channel proteins:

  1. A channel protein's main function is to swiftly transfer ions and water molecules across the membrane only down the concentration gradient.
  2. Transmembrane proteins called channel proteins are important in the transport of substances into and out of cells.
  3. It does not require any kind of energy as it transfers substance down the concentration gradient.
  4. Channel proteins allow the transfer of ions based on their size and charge.
  5. Some channels are open all the time but some channels depend on some specific signal like an electrical signal as they have the presence of gates.
  6. It does not interact with transported material, so the transfer is fast.
  7. Example: chloride, potassium, calcium, sodium ion channels, etc.

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