Q1 · Difficulty 1/3
The net movement of particles from high to low concentration is:
- osmosis of solutes
- diffusion
- active transport
- mitosis
Show answer & explanation
✓ Answer: B — diffusion
Diffusion is movement down a concentration gradient.
OCR · GCSE · Biology
Free OCR GCSE Biology
Practice Paper
8 mixed-difficulty practice questions in the style of real OCR GCSE papers — answers, mark-scheme-style explanations, and the official exam structure all on one page.
Take a Mini Mock →What the real OCR 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.
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.
Q2 · Difficulty 1/3
All the organisms and the non-living components in an area form an:
- organ system
- organism
- population only
- ecosystem
Show answer & explanation
✓ Answer: D — ecosystem
An ecosystem includes living organisms and their environment.
Q3 · Difficulty 1/3
A section of DNA that codes for a particular protein is a:
- gene
- chromosome
- ribosome
- nucleus
Show answer & explanation
✓ Answer: A — gene
A gene is a length of DNA coding for a protein.
Q4 · Difficulty 2/3
Which structure controls the opening and closing of stomata?
- Guard cells
- Root hairs
- Xylem vessels
- Palisade cells
Show answer & explanation
✓ Answer: A — Guard cells
Guard cells open and close the stomata.
Q5 · Difficulty 2/3
Selective breeding to improve crop yield is an example of:
- natural selection
- genetic drift
- cloning
- artificial selection
Show answer & explanation
✓ Answer: D — artificial selection
Humans choosing which organisms breed is artificial selection.
Q6 · Difficulty 2/3
A crop genetically modified to resist insects reduces the need for:
- pesticides
- water entirely
- sunlight
- soil
Show answer & explanation
✓ Answer: A — pesticides
Insect-resistant GM crops need fewer pesticides.
Q7 · Difficulty 2/3
The movement of particles against a concentration gradient, using energy, is:
- diffusion
- osmosis
- evaporation
- active transport
Show answer & explanation
✓ Answer: D — active transport
Active transport requires energy from respiration.
Q8 · Difficulty 2/3
An organism with two identical alleles for a gene is:
- homozygous
- heterozygous
- codominant
- haploid
Show answer & explanation
✓ Answer: A — homozygous
Homozygous means two identical alleles.
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OCR GCSE Biology FAQ
What does the OCR GCSE Biology exam look like?
The OCR 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 OCR GCSE Biology past paper?
Real OCR past papers are published directly by OCR 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 OCR 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.