Special cells

HideShow resource information
  • Created by: Jessica
  • Created on: 27-03-14 23:49
View mindmap
  • Special cells
    • Red blood cells
      • Doughnut shaped/disc - gives it a big area so it can collect more oxygen
      • Has a cell membrane, cytoplasm
      • NO NUCLEUS - only cell in body with no nucleus
        • So it has more space so it can fill itself with more oxygen - it doesn't last long in the body
    • Sperm cells
      • Has a tail - move
      • Has cell membrane, nucleus and cytoplasm
      • 1/2 DNA
      • 23 chromosomes
        • 1/2 DNA
      • Has to join with egg cell - FERTILISATION
    • Nerve cells
      • Carry electrical signals
      • Has cell membrane, nucleus and cytoplasm
      • Long/drawn out
      • Nerve endings to receive/send signals
    • Palisade cell - leaf cell
      • Lots of chloroplasts - photosynthesis
    • Guard cells
      • Underside of leaf
      • Creates a pore (hole)
      • Carbon dioxide goes in - oxygen goes out
    • Root hair cell
      • Root of plants - long thin hair
      • Absorb water from soil
      • Big surface area
      • No chloroplasts (underground)

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Cells, tissues and organs resources »