Question

Assume a living cell with 0.9% (\(w/w\)) of glucose solution (aqueous). This cell is immersed in another solution having equal mole fraction of glucose and water. (Consider the data up to first decimal place only) The cell will:

• A. Shrink since solution is 0.5% (\(w/w\))
• B. Shrink since solution is 0.45% (\(w/w\)) as a result of association of glucose molecules (due to hydrogen bonding)
• C. Show no change in volume since solution is 0.9% (\(w/w\))
• D. Swell up since solution is 1% (\(w/w\))

Hint:

In osmosis, water moves from areas of low solute concentration to high solute concentration. If the concentrations are equal, there is no net movement of water.

Answer 1

The Correct Option is C

Osmosis dictates water movement into or out of a cell according to the surrounding solute concentration. A solution with an equal glucose concentration (0.9% \(w/w\)) internally and externally results in identical osmotic potentials. Consequently, no net water movement occurs, and the cell volume remains unchanged due to this equilibrium.