Biology

The correct answer is: B.cell wall.

The cell wall in plant cells provides structural support and helps maintain the cell's shape. In pure water, water enters both red blood cells and plant leaf cells due to osmosis, as the water concentration outside the cells is higher than inside.

1.In red blood cells, which lack a cell wall, the influx of water causes the cell to swell and can eventually lead to the cell bursting (a process called lysis).

2.In plant leaf cells, the cell wall prevents the cell from bursting. The cell wall exerts pressure against the expanding cell membrane, known as turgor pressure, which helps maintain the cell's shape and prevents it from rupturing, even though the cell is taking in water.

Why the other options are incorrect: