If the neuron membrane becomes more permeable to Na+, Na+ will trans.pdf

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If I drive x mph for t hours and then y mph for 2t hours. Then what is expression for the average speed. Solution average speed = (total distance)/(total time) ----- distance = rate*time ------------------- Your Problem: total distance = (xt)+ (2yt) = (x+2y)t miles ---------------------- total time = t + 2t = 3t hours --------------------------- Therefore, average speed = [(x+2y)t]/(3t) = (x+2y)/3 mph.

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If the neuron membrane becomes more permeable to Na+, Na+ will transport across the
membrane, causing the cell to depolarize. True or false
Solution
When a cell becomes more permeable to sodium, then more sodium will enter into the cell. At
rest, the inside of the cell is negative in comparison to outer. This is because there is more
sodium ions present at the outside in comparison to inside.
Now, sodium moves into the cells through sodium channels. Please note that this movement will
occur until the inside of the membrane becomes positive. This process is called as depolarization,
i.e. change in polarity; the inside of the cell becomes positive instead of negative and vice-versa.
So, your statement is true. Yes, if the neuron membrane becomes more permeable to sodium
ions, then these ions will transport across membrane causing the cell to depolarize.

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