B2 1.3 - Specialised Cells

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  • Specialised Cells
    • Many mitochondria
      • Needs a lot of energy
      • Muscle cells
      • Sperm cells
    • Many ribosomes
      • Making a lot of protein
      • Gland cells which produce enzymes
    • Tails
      • Need to move
      • Sperm cells
    • Receptor cells
      • Structures enable them to detect stimuli
      • Cone cells in eye
        • Light sensitive
    • Neurons
      • Specialised to carry impulses
      • Receptors to CNS
    • Many chloroplasts
      • Photosynthe-sising
      • Mesophyll cells on a leaf
    • Root hair cells
      • Increase surface area of root
        • To absorb water and mineral ions efficiently

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