B2 Summary

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  • Cells, tissues and organs
    • Oxygen and other dissolved substances move into and out of cells by diffusion
    • In animals and plants, cells are grouped into tissues. Organs are made up of different tissues working together to carry out a function
    • Different types of cells have different structures which enable them to carry out their specific functions. They are specialised
    • Plant, animal and microbial cells have many similarities and some differences
    • The parts of cells are called organelles. Each ha an important part to play in the function of the cell


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