KEY TERMS FOR TEST

• organelle


  component inside cell that carries out a particular task
• examples of organelles


  chloroplast, cilia
• cell


  the basic functional unit of a living organism
• examples of cells


  neurone, guard cell
• tissue


  a collection of similar cells carrying out a particular function
• examples of tissue


  retina, palisade mesophyll
• organ


  a collection of different tissues which work together to perform a common function
• examples of organs


  eye, flower
• system


  a group of organs working together to perform an overall function for an organism
• examples of systems

  circulatory system, transport system
• order from smallest to largest

  organelle, cell, tissue, organ, system