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Year 12 SACE Biology practice questions
This public preview page identifies the planned Year 12 SACE Biology demo route and links it to curriculum coverage while the reviewed sample question set is being completed.
Sample-question focus
The planned public sample is for Year 12 SACE Biology practice and will open after the demo questions are reviewed.
Skills covered
Practice cells, living systems, ecosystems, genetics, evolution, biodiversity, disease, biotechnology, and scientific inquiry.
Exercise and test mode
The route is public now; the exercise and test preview will become available after the curated question set is ready.
Curriculum link
Compare this demo with the SACE Year 11-12 Biology curriculum page to scan related topics, subtopics, and pathway coverage.
These sample questions are visible on the page before login. Use them to check the style of the answers and worked explanations, then open the no-login demo for a longer practice set.
practiceSACE Year 12 Biology practice questionsDNA and proteinshardprotein-synthesis diagram
1. The protein-synthesis diagram shows mRNA leaving the nucleus for a ribosome. What process produced the mRNA?
Choices
Transcription
Osmosis
Mitosis
Active transport
Explanation:
Transcription uses a DNA template to make mRNA before translation at the ribosome.
practiceSACE Year 12 Biology practice questionsInheritancehardPunnett square
2. A Punnett square shows Rr x Rr. What proportion of offspring are expected to show the recessive phenotype?
Choices
25%
50%
75%
100%
Explanation:
The recessive phenotype appears only in rr offspring, one of the four boxes.
practiceSACE Year 12 Biology practice questionsDiseaseharddisease-spread graph
3. The infection graph shows a lower peak after vaccination coverage increases. What is the best explanation?
Choices
Fewer susceptible hosts reduced transmission.
Vaccines made pathogens reproduce faster.
Antibodies are not involved.
The disease became inherited instantly.
Explanation:
Vaccination can reduce the number of susceptible hosts, lowering transmission and the case peak.
practiceSACE Year 12 Biology practice questionsImmunityhardimmune-response graph
4. An antibody diagram shows one antibody shape binding strongly to antigen X but not antigen Y. What does this show?
Choices
Antibody specificity
Osmosis
Photosynthesis
Carrying capacity
Explanation:
Antibodies have binding regions that are specific to particular antigen shapes.
practiceSACE Year 12 Biology practice questionsBiotechnologyhardDNA gel diagram
5. A gel electrophoresis result shows a DNA fragment close to the wells and another much further down the gel. Which fragment is larger?
Choices
The fragment closer to the wells
The fragment furthest down the gel
Both fragments are proteins
Distance does not relate to size
Explanation:
Larger DNA fragments move more slowly through the gel and stay closer to the wells.
practiceSACE Year 12 Biology practice questionsHomeostasishardhomeostasis loop
6. A homeostasis loop shows water loss increasing blood solute concentration. Which response helps conserve water?
Choices
More ADH is released.
Less water is reabsorbed only.
The kidneys stop filtering blood.
Antibodies carry water.
Explanation:
ADH increases water reabsorption by the kidneys, helping restore water balance.
For parents checking senior maths readiness
Year 10 practice can help identify whether a student is comfortable with algebra, geometry, trigonometry, statistics, and probability before choosing senior maths pathways. The demo is a quick way to sample those areas without creating an account.
This demo is in progress
In progress
Year 12 SACE Biology is available to purchase, and the public demo preview is still being prepared.
Students can use the purchased subject once subscribed; this anonymous preview will be opened after the curated public question set is ready.
Does this page include Year 12 SACE Biology practice questions?
Not yet. The Year 12 SACE Biology demo route is public, but the interactive sample questions will open after the reviewed public set is ready.
Can students try the demo without signing up?
No sign-up is required to view the preview status. The no-login interactive demo will be available after the sample set is completed.
How does this demo relate to curriculum coverage?
This demo is linked with the SACE Year 11-12 Biology curriculum coverage page, where parents can compare the broader topic and pathway structure used for Skill Align practice.
