Question

Which of the following conditions will occur if the RBCs are placed in a hypotonic solution?

• A. Shrink due to osmotic water loss
• B. Rupture due to the influx of water
• C. Maintain their shape due to the cell wall
• D. Swell but avoid rupturing due to the cell wall
• E. Pump out excess water with the contractile vacuole

Answer 1

Answer: (B)

Rupture due to the influx of water

Hypotonic solution is any solution which has low solute molecules and more water molecules. If RBCs are placed in a hypotonic solution, water moves into the cell from the high concentration of solvent to less concentration. Due to the influx of water cell swells and finally burst.

So, the correct answer is option B.