Ask Question
23 June, 08:41

The generation of an action potential in a neuron requires the presence which type of membrane channels

+3
Answers (1)
  1. 23 June, 10:19
    0
    The right answer is: voltage-gated channels

    Ionic channels are membrane proteins that allow the selective passage of the cell membrane by ions (Na +, Ca2 +, K +, Cl-, ...) following the electrochemical gradients. They play a vital role in cellular excitability, triggering and propagation of action potential. They intervene in the coupling excitation-contraction and excitation-secretion. Ion channel selectivity is based on the adequacy of ion size and charges with the structure and amino acid sequence of the channels.

    Among these channels, there are voltage-gated channels.

    These are ion channels whose opening is activated by the membrane potential.

    These dependent volumetric channels are characterized:

    - by the selectivity of the ions (Ca2 +, Na +, K +, Cl-, ...)

    - by their conductance

    - by their activation domain (significant depolarization to low)

    - by their kinetics of inactivation (slow, fast or transient)
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “The generation of an action potential in a neuron requires the presence which type of membrane channels ...” in 📙 Biology if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers