SaraNextGen.Com

For the maintenance of ionic gradients across the resting membrane, the sodium-potassium pump transports

a)

 outwards for  into the cell

b)

 outwards for  into the cell

c)

 inwards for  out the cell

d)

 inwards for  out the cell



Question ID - 5803 | SaraNextGen Top Answer

For the maintenance of ionic gradients across the resting membrane, the sodium-potassium pump transports

a)

 outwards for  into the cell

b)

 outwards for  into the cell

c)

 inwards for  out the cell

d)

 inwards for  out the cell

1 Answer
127 votes
Answer Key / Explanation : (a) -

(a)

 outwards for  into the cell.

The plasma membrane of the neuron is polarized due to the high out flow of  ions to outside and low intake of  ion inside.  ions outflow by the ion channel of plasma membrane and  ions inflow by it.

This creates a difference in the positive potential across the plasma membrane. The membrane is less positive inside which is normally termed as negative inside w.r.t outside

127 votes


127