Asked by Eli
what does the vacuole store
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A vacuole is a membrane-bound compartment that stores and regulates materials in a cell. What it stores depends on the cell type, but common contents include:
- Water (especially the large central vacuole in plant cells)
- Ions (K+, Cl− and others) and salts that help osmotic balance and pH
- Nutrients (sugars, amino acids, metabolites)
- Waste products and toxic compounds (sequestered away from the cytoplasm)
- Pigments (e.g., anthocyanins in plant vacuoles)
- Enzymes and molecules for breaking down macromolecules
Special types: contractile vacuoles in some protists store and expel excess water; animal cells have small vacuoles or vesicles that store food, waste or transport materials. In plants the vacuole also maintains turgor pressure and contributes to cell growth.
- Water (especially the large central vacuole in plant cells)
- Ions (K+, Cl− and others) and salts that help osmotic balance and pH
- Nutrients (sugars, amino acids, metabolites)
- Waste products and toxic compounds (sequestered away from the cytoplasm)
- Pigments (e.g., anthocyanins in plant vacuoles)
- Enzymes and molecules for breaking down macromolecules
Special types: contractile vacuoles in some protists store and expel excess water; animal cells have small vacuoles or vesicles that store food, waste or transport materials. In plants the vacuole also maintains turgor pressure and contributes to cell growth.
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