Australia · ACARA Content Descriptions
Year 11 Biology.
Year 11 Biology explores the diversity of life from the microscopic level of cells to the macroscopic level of ecosystems. Students investigate the interconnectedness of species, cellular processes, and the functioning of multicellular organisms, developing critical scientific inquiry and analytical skills.

01Biodiversity and the Interconnectedness of Life
Students explore how biodiversity includes diversity of species and ecosystems, and investigate the interactions between biotic and abiotic components.
Students explore how biodiversity includes diversity of species and ecosystems. They learn classification systems based on morphological and molecular characteristics.
An investigation into the biotic and abiotic components of ecosystems and how they interact. Students analyse energy flow and matter cycling within these systems.
Students examine population dynamics, including carrying capacity and the factors that limit population growth. They analyse data to predict population changes over time.
An exploration of how human activities affect biodiversity and ecosystem function. Students evaluate conservation strategies designed to mitigate these impacts.

02Cells and Multicellular Organisms
Students investigate the ultrastructure of cells, biochemical processes, and how multicellular organisms rely on specialised systems for survival.
Students investigate the ultrastructure of prokaryotic and eukaryotic cells. They explore the fluid mosaic model of the cell membrane and its role in transport.
An examination of the biochemical processes that sustain life, specifically photosynthesis and cellular respiration. Students explore the critical role of enzymes in these pathways.
Students explore how multicellular organisms rely on specialised cells, tissues, and organs. They investigate the characteristics of efficient exchange surfaces.
A comparative study of transport systems in vascular plants and animals. Students analyse how materials are moved around the organism to maintain cellular function.

03Genetics and Heredity
Students explore the molecular basis of genetics, including DNA replication, cell division, and the patterns of inheritance that drive genetic variation.
Students explore the molecular structure of DNA and the process of semi-conservative replication. They understand how genetic information is stored and accurately copied.
An investigation into the processes of mitosis and meiosis. Students compare these processes and their respective roles in growth, repair, and sexual reproduction.
Students examine how genes are expressed through transcription and translation to produce proteins. They explore the impact of mutations on protein synthesis.
An exploration of Mendelian and non-Mendelian inheritance patterns. Students use Punnett squares and pedigrees to predict genotypic and phenotypic ratios.

04Maintaining the Internal Environment
Students learn about homeostasis and how the nervous and endocrine systems coordinate physiological responses to environmental changes.
Students learn about the concept of homeostasis and the stimulus-response model. They investigate the role of negative feedback mechanisms in maintaining a stable internal environment.
An examination of the structure and function of the nervous system in detecting and responding to stimuli. Students explore action potentials and synaptic transmission.
Students investigate the role of hormones in regulating physiological processes. They compare the speed and duration of endocrine responses with nervous responses.
A detailed study of how organisms regulate body temperature and water balance. Students explore structural, behavioural, and physiological adaptations.