TCE Biology (BIO315124) exam strategy: The 2026 guide
How the 2026 TASC Biology exam (BIO315124) works: a three-hour paper assessing criteria 3, 5, 6, 7 and 8, organised in five equal sections of about 36 minutes, how the external ratings feed your award, what each criterion covers, worked answers, common mistakes and a plan to 16 November.
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The exam at a glance
Monday 16 November 2026, 9 am. A three-hour written exam assessing criteria 3, 5, 6, 7 and 8. The TASC exemplar paper has 15 minutes preparation time and five sections, one per criterion, each about 36 minutes and 36 marks (180 marks in total). A Biology Information Sheet can be used throughout.
The exam requirement comes from the TASC course document for Biology (BIO315124), the section layout from TASC's external assessment specifications (Version 3, February 2025), which match the exemplar paper and the 2024 and 2025 papers, and the date from the 2026 TASC written exam timetable. The specifications also list what is included and excluded for each criterion; the TCE Biology hub links a page for each examined topic.
The exemplar paper also makes two instructions clear: answer all questions and all items within each question, and make sure your answers address the listed criterion for each section.
How the exam feeds your award
The course document says the final award is decided by TASC from 13 ratings: 8 from internal assessment and 5 from the external exam. Minimum requirements include:
| Award | Minimum ratings | Of which from the exam |
|---|---|---|
| Exceptional Achievement (EA) | 10 A, 3 B | 3 A, 2 B |
| High Achievement (HA) | 5 A, 5 B, 3 C | 1 A, 3 B, 1 C |
| Commendable Achievement (CA) | 6 B, 6 C | 2 B, 3 C |
| Satisfactory Achievement (SA) | 11 C | 3 C |
Each section produces its own rating, so every section matters equally. A blank or rushed section cannot be rescued by a strong one; keep to about 36 minutes each.
What each section tests
| Section in the exemplar | Criterion | Core content from the course document |
|---|---|---|
| A | 3: biological inquiry | Designing investigations, variables, data processing and graphs, evaluating reliability and validity |
| B | 5: regulation of cells and systems | Enzymes (inhibitors, cofactors), photosynthesis and respiration equations and factors, DNA replication enzymes, protein synthesis, the lac operon, mutations |
| C | 6: homeostasis | Stimulus-response and negative feedback, nerve impulses and synapses, hormones, thermoregulation, glucose regulation, osmoregulation and the nephron, transpiration, water balance in arid environments |
| D | 7: pathogens and immunity | Types of pathogens, transmission, three lines of defence, named immune cells, humoral and cell-mediated immunity, active and passive immunity, vaccination and herd immunity |
| E | 8: cell division, genetics and evolution | Cell cycle, mitosis and meiosis, monohybrid crosses including sex linkage, codominance, incomplete dominance and ABO blood groups, pedigrees, natural selection, drift, gene flow, bottlenecks, speciation |
The criteria 3 to 8 deep dive works through each of these areas.
Worked answers in the exam style
Scenario (practice). A student counts oxygen bubbles from pondweed for 1 minute at lamp distances of 10, 20, 30 and 40 cm, once at each distance.
Improvements to reliability: repeat at each distance (at least three trials) and calculate a mean. Improvements to validity: control temperature (heat from the lamp increases with closeness; use a heat shield or water bath), use the same piece of pondweed, and let it acclimatise for a few minutes at each distance. Better measurement: collect gas in a measuring cylinder or syringe, because bubble sizes vary.
Question (practice). Explain how blood glucose is returned to normal after a meal.
Stimulus: blood glucose rises. Receptor and control centre: the pancreas detects the rise. Response: the pancreas secretes insulin into the blood. Effectors: liver and muscle cells take up glucose and convert it to glycogen; other body cells take up more glucose for respiration. Result: blood glucose falls; the reduced stimulus decreases insulin secretion (negative feedback). The specifications do not require the names of the islet cells. See glucose regulation.
Question (practice). Haemophilia is X-linked recessive. A carrier woman () and an unaffected man () have children. What proportion of sons are expected to have haemophilia?
Sons receive Y from their father and either or from their mother, so half the sons are expected to be affected (). No daughters are expected to be affected, but half are expected to be carriers.
Command words
| Word | What it asks |
|---|---|
| Identify / State | A specific term, value or feature. |
| Describe | The features or steps, in order. |
| Explain | How and why, linking cause and effect. |
| Analyse | Break a process or data set into parts and show how they relate: the verb in every Biology criterion title. |
| Compare | Similarities and differences. |
| Evaluate | Judge strengths and weaknesses using evidence, and conclude. |
Common mistakes
- Leaving a section blank or rushed. Each section produces a criterion rating.
- Naming a gland but not the hormone or target (for example, "the pancreas lowers glucose").
- Mixing up active and passive immunity, or natural and artificial.
- Punnett squares without labelled gametes, or sex-linked crosses written without X and Y.
- Evaluations that say "human error" rather than naming a specific variable, measurement problem or improvement.
Eight weeks to 16 November
- Weeks of 21 and 28 September: Criterion 5: enzymes, photosynthesis and respiration, DNA, protein synthesis and mutations.
- Week of 5 October: Criterion 6: homeostasis, with one flow diagram for each regulated variable.
- Week of 12 October: Criterion 7: pathogens and the immune response.
- Week of 19 October: Criterion 8: cell division, genetics and evolution.
- Week of 26 October: Criterion 3: design and evaluation practice on unfamiliar experiments.
- Weeks of 2 and 9 November: The TASC exemplar paper and the 2024 and 2025 BIO315124 papers under timed conditions, section by section, checked against the assessment reports.
Test yourself with the mixed exam-style quiz and the criteria quiz.
Sources & how we know this
- Biology (BIO315124) course document — Office of Tasmanian Assessment, Standards and Certification (TASC)
- BIO315124 Biology exemplar exam paper — Office of Tasmanian Assessment, Standards and Certification (TASC)
- 2026 TASC written exam timetable (V 1.1, August 2026) — Office of Tasmanian Assessment, Standards and Certification (TASC) (2026)
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