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WalesBiologyQuick questions
Unit 1: Cells and exchange
Quick questions on Diffusion, osmosis and active transport - WJEC GCSE Biology (Unit 1)
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What are plant cells?Show answer
In a dilute solution, water moves into the cell by osmosis. The vacuole swells and pushes the cytoplasm against the cell wall, making the cell turgid (firm). Turgid cells support the plant.
What are animal cells?Show answer
Animal cells have no cell wall, so osmosis can damage them. In a dilute solution, water moves in and the cell may swell and burst (lysis). In a concentrated solution, water moves out and the cell shrinks and shrivels (crenation).
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