Year 11 HSC Biology sample questions

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Year 11 HSC Biology practice questions

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

Sample-question focus

Try a short public sample of Year 11 HSC 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 HSC Year 11 Biology practice questions Cell transport hard cell transport diagram

1. The membrane diagram shows ions moving from low concentration to high concentration through a protein pump. Which process is shown?

Choices

Active transport
Simple diffusion
Osmosis only
Photosynthesis

Explanation:

Movement against a concentration gradient through a membrane protein requires energy, so it is active transport.

practice HSC Year 11 Biology practice questions Enzyme activity hard enzyme graph

2. An enzyme-rate graph peaks at 37 C and falls at 55 C. What is the best explanation for the lower rate at 55 C?

Choices

The enzyme is denatured.
The enzyme has become a product.
Substrate concentration must be zero.
The reaction has no activation energy.

Explanation:

High temperature can change the enzyme's active-site shape, reducing substrate binding and reaction rate.

practice HSC Year 11 Biology practice questions Organisation of living things hard cell-cycle diagram

3. The cell-cycle diagram shows one parent cell forming two daughter cells with the same chromosome number. Which division process is represented?

Choices

Mitosis
Meiosis
Fertilisation
Mutation

Explanation:

Mitosis produces genetically identical daughter cells for growth and repair.

practice HSC Year 11 Biology practice questions Biodiversity hard selection graph

4. A selection graph shows a bacterial population becoming mostly resistant after repeated antibiotic exposure. What is the best explanation?

Choices

Resistant bacteria survived and reproduced.
All bacteria tried harder to survive.
Antibiotics created every resistance gene on demand.
No variation existed before treatment.

Explanation:

Antibiotic exposure selects for existing resistant variants, increasing their frequency over generations.

practice HSC Year 11 Biology practice questions Ecosystem dynamics hard ecosystem pyramid

5. A food-web pyramid shows 9000 kJ at producers and 900 kJ at herbivores. What percentage transfer is represented?

Choices

10%
1%
90%
100%

Explanation:

The transfer is 900 / 9000 x 100% = 10%.

practice HSC Year 11 Biology practice questions Population data hard population graph

6. A population graph rises and then levels near 80 individuals after resources become limiting. What does the level section represent?

Choices

Carrying capacity
Extinction
Mutation rate
A food chain

Explanation:

The level section shows the population stabilising near the environment's carrying capacity.

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.

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Practice Summary

Year 11 · HSC Biology · Test mode · 11 questions · 10 min

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HSC Biology practice questions FAQ

Does this page include Year 11 HSC Biology practice questions?

Yes. This public demo includes reviewed Year 11 HSC 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 HSC Year 11-12 Biology curriculum coverage page, where parents can compare the broader topic and pathway structure used for Skill Align practice.