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What type of current flows through the axon plasma membrane during the steep phase of Depolarization?...

What type of current flows through the axon plasma membrane during the steep phase of Depolarization?

      a) chiefly a sodium current      b) chiefly a potassium current     c) chiefly a calcium current  

      d) equal currents of sodium and potassium      e) equal currents of calcium and potassium

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Answer #1

Answer ; a) chiefly a sodium current.

Reason ; The action potential within the cells depends on the passage of electrically charged material passing through the axon plasma membrane. In this process two major state the cell can undergo and the state is formed depends upons on the type of electrical ion present within their cells. These two main state can be referred as depolarization and repolarization. In the given statement, the question is about what kind of electron current that is widely take place in the depolarization period.The above mentioned ions are the most chiefly present and influence these state. Other electrons mentioned in the option are hign on their dependent state.

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