Nutrient and Gas Requirements

What is the difference in nutrient and gas requirements between autotrophs and heterotrophs?

Inquiry Question


  • Investigate the structure of autotrophs through the examination of a variety of materials, for example:
    • Dissected plant materials
    • Microscopic structures
    • Using a range of imaging technologies to determine plant structure
  • Investigate the function of structures in a plant, including but not limited to:
    • Tracing the development and movement of the products of photosynthesis
  • Investigate the gas exchange structures in animals and plants through the collection of primary and secondary data and information, for example:
    • Microscopic structures: alveoli in mammals and leaf structure in plants
    • Macroscopic structures: respiratory systems in a range of animals
  • Interpret a range of secondary-sourced information to evaluate processes, claims and conclusions that have led scientists to develop hypotheses, theories and models about the structure and function of plants, including but not limited to:
    • Photosynthesis
    • Transpiration-cohesion-tension theory
  • Trace the digestion of foods in a mammalian digestive system, including:
    • Physical digestion
    • Chemical digestion
    • Absorption of nutrients, minerals and water
    • Elimination of solid waste
  • Compare the nutrient and gas requirements of autotrophs and heterotrophs