A plant cell is placed in pure water.
Water moves into the cell by osmosis, but the cell does not burst.
Which statement explains why the plant cell does not burst?
The cell membrane is strong enough to stop more water entering.
The vacuole pumps water back out of the cell by active transport.
The cell wall blocks water from entering the cytoplasm of the cell.
The cell wall is strong and stops the cell from expanding too far.
194 exam-style questions on OCR GCSE Biology 2.1 Supplying the cell, covering 2.1.1 Transport across cell membranes, 2.1.2 Mitosis and the cell cycle, 2.1.3 Importance of cell differentiation, and 2.1.4 Stem cells. Each one has a worked solution and a mark scheme showing where the marks go.