BRAINCAKEVacuoles
A vacuole is a membrane-bound cell organelle.
Plant cells have large permanent vacuoles. Animal cells have vacuoles but they are small and temporary. The Vacuole is surrounded by a selectively permeable membrane called the tonoplast.
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Key terms in this lesson
- turgor pressure
- The pressure exerted by the contents of a plant cell against the cell wall as water enters by osmosis, making the cell rigid.
More in Cell Structure
- Golgi Apparatus
- Lysosomes
- Ribosomes
- Cell Wall
- Cell Structure and Function
- Cell Specialisation
- Tissues
- Organs
All 26 lessons in Cell Structure · All AQA AS-level Biology topics