animal cell specialisation

• What are the three specialized animal cells

  Sperm cells, nerve cells, and muscle cells
• What is the process called when cells become specialized?

  Differentiation
• What are the adaptations of sperm cells for fertilization?

  • Long tail for swimming
  • Streamlined shape
  • Packed with mitochondria for energy
  • Contains enzymes to digest the ovum's outer layer
• What is the primary function of sperm cells?

  To join with an ovum during fertilization
• How do sperm cells contain genetic information?

  They contain genetic information in the nucleus
• What are the key features of nerve cells?

  • Long axon for transmitting impulses
  • Myelin sheath for insulation and speed
  • Synapses for passing impulses to other nerve cells
  • Dendrites to increase surface area for connections
• What is the main function of nerve cells?

  To send electrical impulses around the body
• What role does myelin play in nerve cells?

  It insulates the axon and speeds up transmission of nerve impulses
• What are the adaptations of muscle cells for contraction?

  • Contain protein fibers that change length
  • Packed with mitochondria for energy
  • Work together to form muscle tissue
• What is the key feature of muscle cells?

  They can contract, or get shorter
• How do protein fibers in muscle cells contribute to contraction?

  They shorten when the muscle cells contract
• What do muscle cells require for energy during contraction?

  Mitochondria
• How do muscle cells work together?

  • They form muscle tissue
  • Collaborate to enable movement
  • Each cell contributes to overall contraction