VCE Vault

VCE Biology (Year 12)

VCE Biology (Year 12) on VCE Vault: 24 lessons written for Year 12 (VCE, Victorian Certificate of Education), each with worked examples, practice questions and Aari, an AI tutor. The first 4 lessons are free; the whole subject is a one-off A$14.99.

VCE Biology past exams 2023–2025: 223 questions matched to these lessons.

VCE Biology (Year 12) study notes: 107 pages covering 24 topics (PDF, A$9.99).

Lessons

Nucleic Acids and Proteins

  • DNA Structure and Replication (free) — Describe the structure of DNA as a double helix and explain the process of semi-conservative replication.
  • Transcription — From DNA to mRNA (free) — Describe transcription as the synthesis of mRNA from a DNA template, including RNA processing in eukaryotes.
  • Translation — From mRNA to Protein (free) — Describe translation at the ribosome, including the role of tRNA and codons, and determine amino acid sequences from mRNA.
  • Regulation of Gene Expression (trp Operon) (free) — Describe how the trp operon regulates tryptophan synthesis in prokaryotes via a repressible operon mechanism.
  • PCR, Gel Electrophoresis and DNA Profiling — Explain how PCR amplifies DNA, how gel electrophoresis separates fragments by size, and how these combine to produce a DNA profile.
  • CRISPR-Cas9 and Gene Editing — Describe how CRISPR-Cas9 edits DNA at a specific sequence and discuss its applications and ethical considerations.

Biochemical Pathways

  • Enzymes and Coenzymes — Explain how enzymes lower activation energy via the induced fit model and describe the role of coenzymes in metabolism.
  • Photosynthesis — Describe the light-dependent and light-independent stages of photosynthesis, identifying inputs, outputs and locations.
  • Cellular Respiration — Describe glycolysis, the Krebs cycle, and oxidative phosphorylation, including locations, inputs, outputs and ATP yield.
  • Biotechnology Applications — Describe restriction enzymes, gel electrophoresis, PCR, and CRISPR-Cas9, and discuss applications and ethical considerations.
  • Anaerobic Respiration and Fermentation — Compare aerobic and anaerobic respiration pathways and describe lactic acid and ethanol fermentation in context.
  • Limiting Factors in Photosynthesis and Respiration — Identify limiting factors in photosynthesis and respiration and interpret rate-vs-factor graphs.

Responding to Pathogens

  • Pathogens and the Innate Immune Response — Classify cellular and non-cellular pathogens and describe physical, chemical and cellular barriers of innate immunity, including the inflammatory response.
  • Adaptive Immunity — Humoral and Cell-Mediated — Describe the humoral response (B cells, antibodies) and cell-mediated response (T cells) to antigens, including memory cells.
  • Immune Dysfunction — Allergies, Autoimmunity, Immunodeficiency — Describe allergic reactions, autoimmune disorders and immunodeficiencies with reference to specific examples.
  • Vaccines and Antiviral/Antibiotic Treatments — Explain how vaccines generate immunity and distinguish antibiotics (bacterial) from antivirals, including the issue of antibiotic resistance.
  • Antigenic Drift, Shift and Emerging Diseases — Distinguish antigenic drift and shift, explain why influenza vaccines change yearly, and describe factors behind emerging zoonotic diseases.
  • Herd Immunity, Outbreaks and Public Health — Explain how herd immunity protects a population and how public health measures complement vaccination to control outbreaks.

Species and Evolution

  • Evidence for Evolution — Evaluate multiple lines of evidence for evolution including fossil, comparative anatomy, embryology, biogeography and molecular data.
  • Natural Selection and Speciation — Describe the process of natural selection and the steps of allopatric speciation.
  • Phylogenetic Trees and Classification — Interpret phylogenetic trees (cladograms) and use molecular data to infer evolutionary relationships.
  • Human Evolution — Describe key hominin genera (Australopithecus, Homo) and trends in human evolution, including bipedalism and brain size.
  • Case Study — Antibiotic Resistance as Ongoing Evolution — Apply the theory of natural selection to explain the rise of antibiotic-resistant bacteria and discuss strategies to slow resistance.

Exam Preparation and Technique

  • Biology Exam Technique and Command Words — Decode VCAA command words, structure short-answer responses with appropriate depth, and interpret biological diagrams efficiently.