Unit 1: How do organisms regulate their functions?
Students examine the cell as the structural and functional unit of life—comparing prokaryotic and eukaryotic cells, membrane transport (osmosis, diffusion, active transport), the cell cycle (mitosis, apoptosis) and stem-cell differentiation—and explore how vascular plant tissues and animal digestive, endocrine and excretory systems maintain water balance, temperature and blood glucose, with malfunctions such as diabetes and hyperthyroidism highlighting the importance of homeostasis .
They develop key science skills in designing, conducting and reporting investigations—generating and evaluating primary data, using logbooks for authentication, and communicating findings with appropriate scientific conventions .
Unit 2: How does inheritance impact on diversity?
Students explore genetic continuity through meiosis, inheritance patterns (monohybrid, dihybrid, codominance, pedigree analysis), and the influence of genes, environment and epigenetics on phenotype, then analyse reproductive strategies (asexual vs sexual, cloning technologies) and structural, physiological and behavioural adaptations that support survival in ecosystems—incorporating keystone species roles and Aboriginal and Torres Strait Islander ecological knowledge .
They hone skills in critical data analysis, modelling inheritance outcomes, interpreting ecological interdependencies, and investigating bioethical issues in genetics with ethical reasoning frameworks .
Unit 3: How do cells maintain life?
Students investigate the molecular basis of life by examining nucleic acids (DNA/RNA structures, gene expression, the genetic code), protein synthesis and regulation, DNA manipulation techniques (PCR, gel electrophoresis, recombinant DNA, CRISPR-Cas9), and the structure and regulation of biochemical pathways in photosynthesis and cellular respiration—including enzyme kinetics and biotechnological applications to agriculture and biofuel production .
They advance skills in processing quantitative biochemical data, evaluating methodology rigor, and ethically applying biotechnology tools in laboratory investigations.
Unit 4: How does life change and respond to challenges?
Students study immune system responses to pathogens (innate and adaptive immunity, antigen presentation, vaccination, immunotherapies) alongside evolutionary biology—mechanisms of allele-frequency change, speciation, phylogenetic analysis, and hominin evolution informed by fossil and molecular evidence—then apply this knowledge to contemporary challenges such as disease management and conservation planning .
They consolidate their ability to design and present student-led investigations, critically evaluate primary data, and communicate conclusions effectively in scientific poster format, all within ethical and safety guidelines.