Membrane potential is due to the distribution of ions between the inside and the outside of the cell.

even

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uneven

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parallel

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unique

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Solution

The correct option is B uneven
The membrane potential is generated by the unequal distribution of ions, particularly K⁺and Na⁺ across the plasma membrane. This unequal distribution of ions is maintained by ionic pumps. Neurons generate electrical signals through brief, controlled changes in the permeability of their cell membrane to particular ions (such as sodium and potassium).

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^{+}

^{+}

\begin{matrix} Column I & Column II A. Resting potential & i. Na ions are more on the inside of the membrane at the site B. Depolarization & ii. Potassium channels gets opened C. Repolarization & iii. More K ions inside of the cell and more Na ions outside of the cell \end{matrix}

Potential difference across resting membrane is negatively charged. This is due to differential distribution of the following ions.

(a) $N a^{+} a n d K^{+} i o n s$ (b) $C O_{3}^{2 -} a n d C I^{-} i o n s$

K^{+}

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