Mini practice paper: 8 questions
Mixed-difficulty questions from across the Combined Science (Trilogy) syllabus. Tap "Show answer" after each to check yourself.
Q1 · Difficulty 1/3
The process by which a cell becomes specialised for a particular function is called:
- Diffusion
- Digestion
- Distillation
- Differentiation
Show answer & explanation
✓ Answer: D — Differentiation
Differentiation is the process by which cells develop specialised structures to carry out specific functions.
Q2 · Difficulty 1/3
On a displacement–distance graph of a transverse wave, what does the amplitude represent?
- The number of waves per metre
- The distance between two adjacent crests
- The total distance from the highest to lowest point of the wave
- The maximum displacement from the equilibrium position
Show answer & explanation
✓ Answer: D — The maximum displacement from the equilibrium position
Amplitude is the maximum displacement of a particle from its equilibrium (rest) position. It is not the total peak-to-trough distance (which would be twice the amplitude), nor the wavelength or frequency.
Q3 · Difficulty 1/3
Which stain is commonly used to make the nucleus of plant cells visible?
- Cooking oil
- Sodium chloride
- Iodine solution
- Distilled water
Show answer & explanation
✓ Answer: C — Iodine solution
Iodine stains structures such as the nucleus, increasing contrast so they are easier to see.
Q4 · Difficulty 1/3
Acceleration is defined as the rate of change of:
- Force
- Velocity
- Distance
- Mass
Show answer & explanation
✓ Answer: B — Velocity
Acceleration = change in velocity ÷ time taken; it measures how quickly velocity changes.
Q5 · Difficulty 1/3
Which of the following is a prokaryotic organism?
- A mushroom
- A bacterium
- A human
- An oak tree
Show answer & explanation
✓ Answer: B — A bacterium
Bacteria are prokaryotes. Humans, plants and fungi are all eukaryotes, made of cells with a true nucleus.
Q6 · Difficulty 1/3
A contact force is one where the objects must be:
- Far apart
- Magnetic
- Charged
- Touching
Show answer & explanation
✓ Answer: D — Touching
Contact forces (e.g. friction, tension, normal contact) act only when objects are physically touching.
Q7 · Difficulty 1/3
In the required practical, the enzyme amylase breaks down:
- Starch
- Protein
- Fat
- Glucose
Show answer & explanation
✓ Answer: A — Starch
Amylase digests starch; iodine is used to detect when the starch has disappeared.
Q8 · Difficulty 1/3
Eukaryotic cells are found in:
- Only viruses
- Only plants
- Animals, plants and fungi
- Only bacteria
Show answer & explanation
✓ Answer: C — Animals, plants and fungi
Eukaryotic cells make up animals, plants, fungi and protists. Bacteria are prokaryotic; viruses are not cells at all.
AQA GCSE Combined Science (Trilogy) FAQ
What does the AQA GCSE Combined Science (Trilogy) exam look like?
The AQA GCSE Combined Science (Trilogy) 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 AQA GCSE Combined Science (Trilogy) past paper?
Real AQA past papers are published directly by AQA 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 AQA GCSE Combined Science (Trilogy) 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.