If a 10% sucrose solution is separated from a 20% sucrose solution by a membrane permeable to sucrose, in which direction will net diffusion of sucrose take place?
A) from the 10% sucrose solution to the 20% sucrose solution
B) from the 20% sucrose solution to the 10% sucrose solution
C) from the 10% sucrose solution to the 20% sucrose solution and from the 20% sucrose solution
D) neither from the 10% sucrose solution to the 20% sucrose solution nor from the 20% sucrose solution to the 10% sucrose solution
E) There will be no diffusion in this case.

Question

Quizplus · Accepted Answer

Net diffusion of sucrose will occur from the higher concentration (20% sucrose solution) to the lower concentration (10% sucrose solution) until equilibrium is reached. This is because the concentration gradient is steeper in this direction, driving sucrose molecules to move towards the lower concentration until there is an equal concentration of sucrose on both sides of the membrane. Therefore, option B is the correct choice.

If a 10% Sucrose Solution Is Separated from a 20