Specialised animal and plant cells

• Function of sperms cell

  To fertallise egg
• 2 adaptation of sperms cells

  • Tail to swim to ovume and fertallise it
  • Lots of mitochondria to release energy from respiration, enabling it to swim to ovume and fertallise it
• Function of red blood cell

  Transport oxygen around the body
• Adaptation of red blood cell

  • No nucleus so more room to carry oxygen
  • Red pigment called haemoglobin that binds to oxygen molecules
  • Bi concave disc shape to increase surface area to volume
• Function of nerve cell

  Carry electrical impulse around body
• Adaptation of nerve cell

  • Branched ending to make connections with other neurones or effectors
  • Myelin sheaf insulates the axon to increase speed of electrical impulses
• Function of root hair cell

  Absorb mineral ions and water from soil
• Adaptations of root hair cell

  • Long projection speeds up absorption of water and mineral ions by increasing surface area of the cell
  • Lots of mitochondria to release energy for the active transport of water and mineral ions