THE CELL
TRANSPORT INTO AND OUT OF THE CELL
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Into the cell
|
|
|
Out of the cell
|
|
|
In and out at equal rates
|
|
|
Water will not move at all. The cell is at equilibrium.
|
Detailed explanation-1: -But the given concentration is 2%. Hence, it is hypertonic with blood cells and the solvent flow will be towards NaCl solution from red blood cells. Cells will eventually get shrink leading to crenation.
Detailed explanation-2: -Water will move toward the area with the greatest solute concentration. For example, if you place a cell in a salty solution, the water in the cell will move out of the cell, causing the cell to shrink. A cell that is 1% salt is placed in a solution that is 3% salt.
Detailed explanation-3: -Without any energy investment, water flows from regions of higher chemical potential to ones of lower chemical potential. So, in this case, net water movement occurs in the direction from solution with w=0.2M Pa to the solution with w=0.1M Pa (higher to lower).
Detailed explanation-4: -If we place a cell in the hypertonic solution like in sugar or salt solution, the cell will shrink. It is because the movement of water takes place from lower solute concentration to higher solute concentration i.e from inside sugar solution to attain equilibrium. It results in shrinkage of the cell.