Back to the full dot-point answer
WalesCombined ScienceQuick questions
Unit 1 Biology 1: Cells and respiration
Quick questions on Movement across membranes - WJEC GCSE Science Double Award (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), which supports the plant. In a concentrated solution, water moves out, the cell becomes flaccid, and in extreme cases the membrane pulls away from the wall, which is plasmolysis.
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 (crenation).
Have a question we have not covered?
This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.