NEET PG DENTAL EXAM

HISTOLOGY

URINARY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which solute is the driver ion for osmosis?
A
Sodium
B
Potassium
C
Calcium
D
Urea
Explanation: 

Detailed explanation-1: -Osmosis is the transport of a solvent through a semipermeable membrane that separates two solutions of differing solute concentration. During osmosis, the solvent moves from the solution that is lower in solute concentration to the solution that is higher in solute concentration.

Detailed explanation-2: -The physical driving force of osmosis is the increase in entropy generated by the movement of free water molecules. There is also thought that the interaction of solute particles with membrane pores is involved in generating a negative pressure, which is the osmotic pressure driving the flow of water.

Detailed explanation-3: -If a route such as a channel or carrier protein is open, sodium ions will move down their concentration gradient and return to the interior of the cell.

There is 1 question to complete.