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  • Cells
    • Sex cells
      • Make it possible to reproduce
      • Males produce sperm
      • Females produce eggs
    • Blood cells
      • Fights infection
      • Carries oxygen around the body
      • Clots blood to create a scab to stop a wound bleeding
    • Cancer cells
      • Can be created by the mutations of other cells
      • Untitled
      • Can divide uncontrollably
    • Bone cells
      • Aid in the formation of bone and help maintain calcium balance
      • Decompose bone for resorption and assimilation
      • Regulate bone mineralization
    • Endothelial cells
      • Create new blood vessels
      • Help regulate blood pressure
      • Make up the inner lining of blood vessels
    • Muscle cells
      • Connects muscles to the bones
      • Forms muscle tissue
      • Protects and supports the muscle fibre
    • Diffusion
      • When cells or other substances pass through a thin wall. it is selective of what can pass through
    • Stem cells
      • Repair tissue by dividing and filling in the gaps
    • Nerve cells
      • Sends information via nerve impulses
      • Send signals to and from the brain
      • Conduct and transmit signals
    • Fat cells
      • When stored with fat they become large, when empty they shrink in size
      • Can be used for energy
      • Produce hormones
    • Osmosis
      • The movement of water molecules through a selectively permeable membrane from higher water concentration to a lower water concentration
    • Enzymes
      • Untitled
    • Skin cells
      • Barrier against germs
      • Protects internal structures of the body
      • Prevents dehydration
  • Biological catalysts which speed up chemical reactions, but remain unchanged themselves


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