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Plant cells usually have three parts which are not present in human or animal cells:

1) A cell wall; this is a thick layer around the outside of the plant cell made of a substance called cellulose. The job of the cell wall is to strengthen and support the cell.

2) A central vacuole; this is a space in the centre of the cell filled with a watery solution called cell sap. The sap contains salts, sugars, amino acids and wastes. As well as storing these substances the vacuole helps to support the cell.

3) Chloroplasts; these are structures containing the green pigment called chlorophyll, which traps sunlight. Their job is to make food for the plant by the process of photosynthesis.

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7y ago

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