Year 11 SACE Biology sample questions

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Year 11 SACE Biology practice questions

Use this no-login public demo to preview Skill Align's Year 11 SACE Biology sample questions, explanations, exercise mode, and test mode before regular practice.

Sample-question focus

Try a short public sample of Year 11 SACE Biology questions selected from the reviewed Skill Align demo set.

Skills covered

Practice cells, living systems, ecosystems, genetics, evolution, biodiversity, disease, biotechnology, and scientific inquiry.

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Sample practice questions

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practice SACE Year 11 Biology practice questions Cells and microorganisms hard cell transport diagram

1. A membrane diagram shows glucose entering a cell through a transport protein from high to low concentration. Which process is most likely?

Choices

Facilitated diffusion
Binary fission
Translation
Meiosis

Explanation:

Facilitated diffusion uses a membrane protein but still moves down the concentration gradient without direct energy input.

practice SACE Year 11 Biology practice questions Enzymes hard enzyme graph

2. An enzyme graph shows rate increasing with substrate concentration before it levels off. Why does the graph level off?

Choices

Active sites become saturated.
The enzyme becomes DNA.
Substrate turns into light.
Products stop existing.

Explanation:

Once most enzyme active sites are occupied, adding more substrate has little effect on reaction rate.

practice SACE Year 11 Biology practice questions Biodiversity hard ecosystem pyramid

3. An energy pyramid shows 12000 kJ in producers. Using a 10% transfer, how much energy is available at the next trophic level?

Choices

1200 kJ
120 kJ
10800 kJ
12000 kJ

Explanation:

Ten percent of 12000 kJ is 1200 kJ.

practice SACE Year 11 Biology practice questions Multicellular organisms hard cell-cycle diagram

4. A cell-cycle diagram shows a checkpoint before DNA synthesis. Why are checkpoints important?

Choices

They help regulate cell division.
They stop all metabolism.
They make enzymes unusable.
They remove all chromosomes.

Explanation:

Checkpoints help ensure cells divide only when conditions and DNA status are suitable.

practice SACE Year 11 Biology practice questions Population ecology hard population graph

5. A population graph rises from 20 to 85 before stabilising. What does the stable section most likely indicate?

Choices

Limiting factors are balancing growth.
The population has no organisms.
DNA replication has stopped in every cell.
Food is unlimited forever.

Explanation:

A stable population near carrying capacity suggests resources, predation, or other limits are balancing births and deaths.

practice SACE Year 11 Biology practice questions Selection hard selection graph

6. A graph shows pesticide-resistant insects increasing after repeated pesticide use. Which explanation is best supported?

Choices

Resistant insects had higher survival.
All insects became plants.
The pesticide removed all variation.
Resistance could not be inherited.

Explanation:

Pesticide use selected for insects with resistance, increasing the trait frequency.

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Practice Summary

Year 11 · SACE Biology · Test mode · 15 questions · 10 min

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SACE Biology practice questions FAQ

Does this page include Year 11 SACE Biology practice questions?

Yes. This public demo includes reviewed Year 11 SACE Biology sample questions so families can preview the Skill Align practice style before regular use.

Can students try the demo without signing up?

Yes. The public demo can be opened without signing up, and the attempt stays in the page instead of being saved to a student record.

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.