Question

A RBC and a plant cell are placed in distilled water. The solute concentration is the same in both the cells. What changes would be observed in them?

• A. Both plant cell and RBC would not undergo any change.
• B. The RBC would increase is size and burst, while the plant cell would remain about the same size.
• C. The plant cell would increase in size and burst, while the RBC would remain about the same size.
• D. Both plant cell and RBC would decrease in size and collapse.

Answer 1

Answer: (B)

The RBC would increase is size and burst, while the plant cell would remain about the same size.

In both the cells endosmosis will take place and water will enter into them but the animal cell (RBC) will swell and burst because it is not supported by a cell wall. The plant cell is surrounded by a dead cell wall and hence plant cell will not burst. The plant cell membrane will press tightly against the cell wall and there will be an increase in turgor pressure.

So, the correct answer is option B.