cell differentiation and specialisation

• what is differentiation 


  when a cell changes to become specialised for its job
• what are undifferentiated cells called

  stem cells
• what are sperm cells specialised for ?

  reproduction
• How is a sperm cell adapted for swimming to an egg cell ?

  has a long tail , streamlined head to help it swim to the egg, lots of mitochondria to provide energy
• What are nerve cells specialised for?

  rapid signalling , carry electrical signals
• how are nerve cells adapted to carry its function?

  are long and have branched connections at their ends to connect to other nerve cells and form a network
• what are muscle cells specialised for

  contraction/ contracting quickly
• how are muscle cells adapted for its role

  long , contain lots of mitochondria to generate energy
• what are root hair cells specialised for

  absorbing water and minerals
• how are root hair cells adapted for its role?

  have hairs that gives plant big surface area
• what are phloem and xylem cells specialised for

  transporting substances
• how is a phloem cell adapted for its role

  have few subcellular structures so things can flow through them
• how is a xylem cell adapted for its role

  hollow at centre