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Biology Coursework - Factor affecting osmosis in plant cells Introduction Osmosis is the passage of water molecules from a weaker solution into a stronger solution through a partially permeable membrane. Plant cells are surrounded by a cell wall. This is fully permeable, which means it will not let any molecules go through it, so osmosis will not occur across it. A plant cell also has a cell membrane just like an animal cell. The cell membrane is selectively permeable in the same way as an animal cell. As the water goes in the cytoplasm and vacuole will swell. However, the plant cell has a very strong cell wall around it. The cell wall is much stronger than the cell membrane and it stops the plant cell from bursting. The cytoplasm presses out against the cell wall, but the cell wall resists and presses back on the contents Prediction I predict that the piece of...

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