Which of the following option is correct for statement 'X' and 'Y'?
Statement X: Immediately after repolarisation, ionic imbalance is created on both the sides of nerve fibre.
Statement Y: During repolarisation $K^{+}$ ion channel open up and $K^{+}$ ion moves on inner side of plasma membrane.

Statements X and Y are correct and Y is not correct for X

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Statements X and Y are correct and Y is correct for X

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Statements X is correct and statement Y incorrect

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Statement X is incorrect and statement Y is correct.

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Solution

The correct option is C Statements X is correct and statement Y incorrect
Out of the statements given about membrane potential in the question, statement X is correct, while statement Y is wrong because during repolarisation $K^{+}$ ion channel opens up due to which $K^{+}$ ion moves to the outer side of the plasma membrane and the influx of $N a^{+}$ ion get stopped.

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Similar questions

K^{+}

K^{+}

K^{+}

K^{+}

Column I	Column II	Column III
a. Resting membrane potential	(i) $N a^{+}$ channel get open	(e) $N a^{+}$ and $K^{+}$ pumps are responsible for it
b. Action potential	(ii) $N a^{+}$ channel is closed	(f) Last for very short time
c. Depolarisation	(iii) $N a^{+}$ more on outer side of membrane	(g) $K^{+}$ ions move on outerside
d. Repolarisation	(iv) $N a^{+}$ are more on inner side of membrane	(h) Positive charge on inner side of membrane

\begin{matrix} C o l u m n I & C o l u m n I I & C o l u m n I I I A . R e s t i n g m e m b r a n e p o t e n t i a l & (i) N A^{+} c h a n n e l g e t o p e n & (p) N a^{+} a n d K^{+} p u m p s a r e r e s p o n s i b l e f o r i t B . A c t i o n p o t e n t i a l & (i i) N a^{+} c h a n n e l i s c l o s e d & (q) L a s t f o r v e r y s h o r t t i m e C . D e p o l a r i s a t i o n & (i i i) N a^{+} i o n s a r e m o r e o n o u t e r s i d e o f m e m b r a n e & (r) K^{+} i o n s m o v e o n o u t e r s i d e D . R e p o l a r i s a t i o n & (i v) N a^{+} i o n s a r e m o r e o n i n n e r s i d e o f m e m b r a n e & (s) P o s i t i v e c h a r g e o n i n n e r s i d e o f m e m b r a n e \end{matrix}

a^{+}

K^{+}

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