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WJEC · GCSE · Biology

Free WJEC GCSE Biology
Practice Paper

8 mixed-difficulty practice questions in the style of real WJEC GCSE papers — answers, mark-scheme-style explanations, and the official exam structure all on one page.

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What the real WJEC GCSE Biology paper looks like

Paper 1
Approximately 1 hour 30 minutes, ~70-100 marks. Covers Topics 1-4 of the specification.
Paper 2
Approximately 1 hour 30 minutes, ~70-100 marks. Covers Topics 5-8 of the specification.
Paper 3
Where applicable — e.g. Combined Science, Languages. Includes synoptic and applied questions.
Total exam time: ~3 hours across two or three papers.
Grading: Grades: 9 (highest) to 1 (lowest), with U (ungraded). A grade of 4 is a standard pass; 5 is a strong pass.

Mini practice paper: 8 questions

Mixed-difficulty questions from across the Biology syllabus. Tap "Show answer" after each to check yourself.

Q1 · Difficulty 1/3

Which cells produce the proteins that bind to a specific pathogen?

  1. Lymphocytes
  2. Phagocytes
  3. Platelets
  4. Nerve cells
Show answer & explanation
✓ Answer: A — Lymphocytes
Award 1 mark. A lymphocyte recognises one particular shape on the surface of a pathogen and produces proteins that fit it, which is why the response is specific to that pathogen alone. Phagocytes engulf invaders without needing to recognise them, platelets clot blood, and nerve cells carry impulses.
Q2 · Difficulty 1/3

Which structure controls what enters and leaves an animal cell?

  1. cell membrane
  2. cell wall
  3. nucleus
  4. vacuole
Show answer & explanation
✓ Answer: A — cell membrane
The cell membrane controls movement in and out.
Q3 · Difficulty 1/3

Why is the brain protected by the skull?

  1. To hold the sense organs in place
  2. To insulate the brain from cold
  3. To supply the brain with oxygen
  4. To shield soft nervous tissue from physical damage
Show answer & explanation
✓ Answer: D — To shield soft nervous tissue from physical damage
Award 1 mark. Nerve tissue is delicate and damaged cells are not replaced, so a rigid case is the only effective protection against impact. Insulation and oxygen supply are provided by other means, and the sense organs are held by the tissues around them.
Q4 · Difficulty 1/3

The organelle that contains genetic material and controls the cell is the:

  1. membrane
  2. vacuole
  3. nucleus
  4. cytoplasm
Show answer & explanation
✓ Answer: C — nucleus
The nucleus contains DNA and controls the cell.
Q5 · Difficulty 1/3

In which part of the cell does anaerobic respiration occur?

  1. Nucleus
  2. Chloroplast
  3. Cytoplasm
  4. Mitochondrion
Show answer & explanation
✓ Answer: C — Cytoplasm
Anaerobic respiration takes place in the cytoplasm of the cell, as it does not require the specialised membrane systems of the mitochondria. The nucleus stores genetic information. Chloroplasts carry out photosynthesis. Mitochondria are the site of aerobic respiration, not anaerobic.
Q6 · Difficulty 1/3

Why does exercise increase breathing rate?

  1. To cool the body by breathing out more warm air
  2. Muscles respire faster, needing more oxygen and making more carbon dioxide
  3. To slow the heart rate so that it does not beat too fast
  4. To absorb more glucose from the lungs
Show answer & explanation
✓ Answer: B — Muscles respire faster, needing more oxygen and making more carbon dioxide
Award 1 mark. Faster, deeper breathing increases gas exchange in the alveoli to meet the demand. Glucose comes from the blood, not the lungs.
Q7 · Difficulty 1/3

A microorganism that causes disease is a:

  1. pathogen
  2. producer
  3. predator
  4. decomposer
Show answer & explanation
✓ Answer: A — pathogen
Pathogens cause disease.
Q8 · Difficulty 1/3

Which part of the brain controls heart rate and breathing rate?

  1. The medulla
  2. The cerebral cortex
  3. The cerebellum
  4. The pituitary gland
Show answer & explanation
✓ Answer: A — The medulla
Award 1 mark. The medulla sits at the top of the spinal cord and adjusts heart and breathing rate automatically, which is why these continue during sleep. The cerebellum coordinates movement, the cerebral cortex handles conscious thought, and the pituitary releases hormones rather than nerve impulses.
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WJEC GCSE Biology FAQ

What does the WJEC GCSE Biology exam look like?
The WJEC GCSE Biology exam is structured across 3 components. Paper 1: Approximately 1 hour 30 minutes, ~70-100 marks. Covers Topics 1-4 of the specification. Paper 2: Approximately 1 hour 30 minutes, ~70-100 marks. Covers Topics 5-8 of the specification. Paper 3: Where applicable — e.g. Combined Science, Languages. Includes synoptic and applied questions. Total exam time: ~3 hours across two or three papers.
Can I download a free WJEC GCSE Biology past paper?
Real WJEC past papers are published directly by WJEC on their official website. Kramizo doesn't redistribute copyrighted past papers, but we do generate free AI-written practice papers in the exact same style — same command words, same difficulty tier, same mark conventions. Use this practice paper as warm-up, then time yourself on official past papers before exam day.
How is WJEC GCSE Biology graded?
Grades: 9 (highest) to 1 (lowest), with U (ungraded). A grade of 4 is a standard pass; 5 is a strong pass. Kramizo's practice questions are tagged with difficulty 1-3 mapping roughly to the lower, middle, and top grade boundaries you'll encounter in the real exam.