VCE Biology Past Exam Questions
Browse VCE Biology exam questions from 2015–2025, including NHT and VCE papers. Filter by topic, year and paper; open the original source.
Matching results: 1,677 indexed questions and parts.
Section B, Question 2(b)Question part (b)
Source index checked · not an answer check
Working not previously checked
Report-based difficulty · MediumAverage marks: 45% of available · official reportFull marks: 10% of students · official report
b. Why does exposing the plants to green or blue light as opposed to white light affect the formation of starch? Justify your answer. 4 marks 2023 BIOLOGY EXAM 24 D O N O T W R I T
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2023 VCE Biology examination · Report: 2023 VCE Biology external assessment reportSection B, Question 2(b)Question part (b)
Source index checked · not an answer check
Working not previously checked
Estimated difficulty · Easy
b. During synthesis of a protein, a sequence of amino acids is joined together. After this primary structure has been created, further changes to the primary structure will produce
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2023 VCE (NHT) Biology examinationSection B, Question 3
Source index checked · not an answer check
Working not previously checked
Estimated difficulty · Medium
Question 3 (9 marks) Prokaryotes contain a CRISPR DNA sequence, which consists of nucleotide repeated sections and spacer sections. The diagram below illustrates the positioning of
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2023 VCE (NHT) Biology examinationSection B, Question 3
Source index checked · not an answer check
Working not previously checked
Estimated difficulty · Medium
Question 3 (10 marks) Streptococcus pyogenes is a pathogenic bacterium that can cause a range of diseases including a sore throat. People infected by S. pyogenes produce specific a
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2023 VCE Biology examinationSection B, Question 3(a)Question part (a)
Source index checked · not an answer check
Working not previously checked
Report-based difficulty · MediumAverage marks: 46.7% of available · official reportFull marks: 22% of students · official report
a. Describe the functions of these specific antibodies during an S. pyogenes infection and how this leads to recovery. 3 marks In 2021, researchers from Melbourne’s Nucleus Network
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2023 VCE Biology examination · Report: 2023 VCE Biology external assessment reportSection B, Question 3(a)Question part (a)
Source index checked · not an answer check
Working not previously checked
Estimated difficulty · Medium
a. Outline the function of the CRISPR DNA sequence in prokaryotes. In your answer, state the origin of the spacers. 4 marks 25 2023 BIOLOGY EXAM (NHT) D O N O T W R I T E I N T H I
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2023 VCE (NHT) Biology examinationSection B, Question 3(b)Question part (b)
Source index checked · not an answer check
Working not previously checked
Estimated difficulty · Easy
b. i. Write the nucleotide sequence that must be used on the sgRNA to locate the targeted sequence within the BCL11A gene. 1 mark
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2023 VCE (NHT) Biology examinationSection B, Question 3(b)Question part (b)
Source index checked · not an answer check
Working not previously checked
Report-based difficulty · EasyAverage marks: 90% of available · official reportFull marks: 80% of students · official report
b. Some scientists suggest that this study may have violated a principle of bioethics. Suggest which principle this may be and explain why. 2 marks Principle violated: Explanation:
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2023 VCE Biology examination · Report: 2023 VCE Biology external assessment reportSection B, Question 3(b)(ii)Question part (b)(ii)
Source index checked · not an answer check
Working not previously checked
Estimated difficulty · Easy
ii. Describe the function of the PAM sequence adjacent to the sgRNA target sequence. 2 marks
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2023 VCE (NHT) Biology examinationSection B, Question 3(c)Question part (c)
Source index checked · not an answer check
Working not previously checked
Estimated difficulty · Medium
c. Scientists have successfully edited the BCL11A gene. Initially, two patients were treated. Some of each patient’s stem cells were extracted and then genetically modified. Each p
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2023 VCE (NHT) Biology examinationSection B, Question 3(c)Question part (c)
Source index checked · not an answer check
Working not previously checked
Report-based difficulty · EasyAverage marks: 70% of available · official reportFull marks: 48% of students · official report
c. Explain which participant is the most likely to have received the placebo injection. 3 marks 2023 BIOLOGY EXAM 26 D O N O T W R I T E I N T H I S A R E A
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2023 VCE Biology examination · Report: 2023 VCE Biology external assessment reportSection B, Question 3(d)Question part (d)
Source index checked · not an answer check
Working not previously checked
Report-based difficulty · EasyAverage marks: 70% of available · official reportFull marks: 49% of students · official report
d. Another example of a pathogenic bacteria is Mycobacterium tuberculosis. This bacterium causes the disease tuberculosis (TB). Some strains of this bacterium have become resistant
Search excerpt only. Open the original question for exact equations and diagrams.Source: 2023 VCE Biology examination · Report: 2023 VCE Biology external assessment reportHow to use ClassConnect past exam questions
- Choose a target. Filter by subject, topic, year, sitting or paper.
- Attempt it first. Work under exam conditions before opening the original question.
- Review and repeat. Compare with the official source and examiner report where available; note what to practise next.
Browse without signing in. Topic matches are approximate, not official VCAA tags. Source indexing and difficulty labels do not verify a worked solution. Check current course requirements with your teacher; classconnect is not endorsed by VCAA.
Make practice count
Create a free accountSave your next step
Sign in to save worked questions to My Library. Plus members can build topic-based exam worksheets with separate answer sheets.