b5 - homeostasis and response

• Define homeostasis

  the regulation of the internal conditions of a cell or organism to maintain optimum conditions for function
• name the features of an automatic control system

  stimulus

  receptor cells

  co-ordination centre

  effector

  response
• what is the role of receptor cells

  detect changes in the in environment (stimulus)
• what is the role of the co-ordination centre

  receives and processes the information from the receptor cells to the effector
• what is the role of an effector

  muscles/glands that carry out a response