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Part Function Cell membrane Controls what substances can get into and out of the cell. Cytoplasm Jelly-like substance, where chemical reactions happen. In plant cells there's a thin lining, whereas in animal cells most of the cell is cytoplasm. Nucleus Controls what happens inside the cell - it is not a 'brain'. Chloroplast Where photosynthesis happens - chloroplasts contain a green substance called chlorophyll. Vacuole Contains a liquid called cell sap, which keeps the cell firm. Cell wall Made of a tough substance called cellulose, which supports the cell.

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16y ago

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