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Cells

Lesson 4 / 8

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I can identify that all cells have some structures in common and I can explain that all organisms are unicellular or multicellular.

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All organisms (including animals, plants, fungi and micro-organisms) are made up of one or more living cells. All cells have some structures in common (cell membrane and cytoplasm) and have a three-dimensional shape. Chemical reactions essential to life occur in cytoplasm; the cell membrane regulates the cell’s internal environment. Many animals and plants are multicellular; they are made up of many cells organised to form tissues and organs. Micro-organisms such as bacteria are unicellular – they are made of just one cell.

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