what is Tonoplasam and tonoplast?
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tonoplasm also known as tonoplast is a thin layer of cytoplasm lining a vacuole in a cell. It separates one vacuole from another vacuole in a plant cell. It is also known as vacuolar membrane. It helps in taking in certain food substrates and then dissolve them.
Tonoplast is a single membrane that bounds the vacuoles and separates it from cytoplasm. In plants, tonoplasts facilitate uphill transport of many ions and other materials, making their concentration higher in vacuole than cytoplasm.
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