Question

effect of concentration on molecular movement through a semipermeable membrane. chambers a and b are placed next to each other but are separated by a film permeable to both glucose and fructose. chamber a contains 80% glucose and 60% fructose and chamber b contains 20% glucose and 40% fructose. which of the following will occur? multiple choice glucose will move into chamber b faster than fructose. fructose will move into chamber a faster than glucose. fructose will move into chamber b faster than glucose. glucose and fructose will move into chamber a at the same rate. glucose and fructose will move into chamber b at the same rate.

Explanation:

The movement of molecules through a semi - permeable membrane is based on concentration gradients. Glucose has a higher concentration gradient (80% - 20% = 60% for glucose) compared to fructose (60% - 40% = 20%) from chamber A to chamber B. A steeper concentration gradient leads to a faster rate of diffusion for that molecule. So, glucose will move into chamber B faster than fructose.

Answer:

Glucose will move into chamber B faster than fructose.