A red blood cell is placed in a solution that has the same water potential as its cytoplasm.
Which statement is correct?
No water molecules cross the membrane, so the cell stays the same size.
Water moves in and out at the same rate, so the cell stays the same size.
Water moves into the cell by osmosis, so the cell swells and bursts.
Water moves out of the cell by osmosis, so the cell shrinks and shrivels.
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.