Animal cells specialisation

• What types of cells are discussed in this video?

  Sperm cells, nerve cells, muscle cells
• What is the main purpose of this video?

  To describe specialized animal cells
• What is the term for 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 ovum's outer layer
• What is the job of a sperm cell?

  To join with an ovum
• What do mitochondria provide for sperm cells?

  Energy needed for swimming
• What are the key features of nerve cells?

  • Long axon for impulse transmission
  • Myelin sheath for insulation
  • Synapses for impulse transfer
  • Dendrites to increase surface area
• What is the function of the axon in nerve cells?

  To transmit electrical impulses
• How does myelin affect nerve impulse transmission?

  It speeds up the transmission
• What increases the surface area of nerve cells?

  Dendrites
• 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
• What do protein fibers in muscle cells do during contraction?

  They shorten the cell's length
• What do muscle cells require for contraction?

  Energy from mitochondria
• How do muscle cells work together?

  To form muscle tissue
• Where can students find questions on specialized animal cells?

  • In the vision workbook
  • By clicking on the provided link
• What should students be able to do by the end of the video?

  Describe specialized animal cells' functions