Biology A and B

SACE Stage 1

Home Biology A and B

Biology A and B


SACE Stage 1

10 or 20 credits

Students develop an understanding of the diversity of life as it has evolved, the structure and function of living things and how they interact with other organisms and the environment. The subject involves four topics, from the microscopic level of cells and microorganisms through to ecosystem dynamics and the impact of human activity on the natural world.

Course Content
Biology A

Cells and Microorganisms

  • The 5 Kingdoms
  • Cellular processes
  • Importance of microorganisms
Biodiversity and Ecosystem Dynamics
  • Classification of living organisms
  • Energy and nutrient flow in Ecosystems
  • Biodiversity, species at risk and human activities

Biology B

Multicellular Organisms

  • Multicellular organisms and cell specialisation
  • Exchange surfaces in animal systems
  • Lifestyle choices and human health
  • Exchange surfaces in plants
Infectious Diseases
  • Infectious disease and epidemics
  • The human immune system


Investigations Folio 50%
Skills and Applications Tasks 50%