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Exam Technique Cheat Sheet — Every Command Word Decoded

Every command word decoded across Cambridge IGCSE, Cambridge A Level, AQA GCSE, Edexcel IGCSE / IAL and IB Diploma. The exact answer structure examiners want, the top mistakes they flag, and the phrases that pick up the marks others leave on the table. Free printable PDF for 35+ subjects.

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Command words decoded

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Top mistakes flagged

Phrases that earn marks

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Print-ready PDF

Cambridge IGCSE

Cambridge International A Level

AQA GCSE

Edexcel IGCSE

Edexcel International A Level

IB Diploma HL

Command words — click to expand

Top tips for Biology

  1. 1For EVERY explain question: use 'because', 'therefore', or 'as a result' in every sentence.
  2. 2Name organisms and structures precisely: 'haemoglobin' not 'red blood cells'; 'active site' not 'enzyme part'.
  3. 3For 6-mark questions: plan 6 distinct points before writing. Each must be a separate idea.
  4. 4Describe ≠ Explain. 'Rate increases' = describe. 'Rate increases because more enzyme–substrate collisions have energy ≥ activation energy' = explain.
  5. 5Diagrams: label with biological terms, not everyday words. Use a ruler and label lines that touch the structure.
  6. 6Always state the variable on the y-axis when describing graphs ('the rate of photosynthesis…', not 'it…').

⚠️ Top mistakes examiners flag for Biology

  • Using 'particles' instead of named molecules/ions (water molecules, oxygen molecules, Na⁺ ions).
  • Confusing diffusion with osmosis — osmosis is the movement of WATER from high to low water potential through a partially-permeable membrane.
  • Leaving 6-mark essay questions as one block — examiners can't see 6 distinct points and award fewer marks.
  • Writing 'enzymes are used up in the reaction' — they are catalysts and are not consumed.

✅ Phrases that earn marks

  • …because the active site changes shape
  • …ions are free to move
  • …partially-permeable membrane
  • …higher water potential to lower water potential
  • …as a result of osmosis
  • …chemoreceptors detect the pH change
  • …by active transport, against the concentration gradient

❌ Phrases that lose marks

  • The enzyme stops working
  • Things move across the membrane
  • Blood carries oxygen (say: haemoglobin carries O₂ as oxyhaemoglobin)
  • Vague: 'it', 'stuff', 'things'
  • 'Enzymes are killed' (use: denatured)

Extended answers are where the marks live in Biology

Cambridge IGCSE Biology 6-mark and extended-response questions are won or lost on STRUCTURE and command-word interpretation. A Tutopiya Biology specialist marks your mock answers like an examiner and shows you exactly which command words you're misreading. Submit a free enquiry to get matched.

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Cambridge IGCSE

Cambridge International A Level

AQA GCSE

Edexcel IGCSE

Edexcel International A Level

IB Diploma (HL)

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For students

Keep it on your desk during revision. Check the command word before answering every past paper question.

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For teachers

Share with your class. Use as a classroom poster or laminate for students to keep throughout exam season.

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For tutors

Give to students at the start of each session. Walk through command words before tackling past papers.

Exam technique cheat sheet — FAQ

What is an exam technique cheat sheet?

A one-page reference that decodes every command word in your exam paper (Define, Describe, Explain, Compare, etc.), tells you exactly how examiners want each one structured, and lists the phrases that earn marks vs the ones that lose them. Most students lose grades not because they don't know the content but because they misread the command word — the cheat sheet closes that gap in 5 minutes.

Which subjects and exam boards do you cover?

35 subjects across Cambridge IGCSE, Cambridge International A Level, AQA GCSE, Edexcel IGCSE, Edexcel International A Level and IB Diploma HL. Sciences (Biology / Chemistry / Physics), Mathematics, English Language & Literature, Economics, Business Studies and Computer Science are all included. Each subject has its own dedicated cheat sheet — pick yours below.

How is this different from a generic command-word list?

Generic lists give you definitions. This tool gives you the answer structure examiners expect, the EXACT phrases that earn marks for YOUR specific board and spec, and the top 3–5 examiner-flagged mistakes for your subject. Every cheat sheet is calibrated to the specific paper format — not a one-size-fits-all reference.

Can I download and print the cheat sheets?

Yes — every cheat sheet is downloadable as a free A4 PDF. Sign up takes 10 seconds (name + email), unlocks the download for this and every other Tutopiya study tool, and the PDF is print-optimised so it fits on one page above your desk.

How should I use the cheat sheet during revision?

Three ways: (1) Before every past paper attempt, re-read the command-words section — it primes you to write the right kind of answer. (2) After marking a past paper, compare your phrasing to the "earn vs avoid" lists and rewrite weak answers. (3) Two weeks before exams, laminate the PDF and pin it above your desk. Treat it like a checklist you tick off every time you answer a question.

Will this guarantee a higher grade?

Exam technique typically lifts students by 1–2 grades when their content knowledge is already secure but they're losing marks on phrasing. It will NOT compensate for missing content knowledge — for that, combine the cheat sheet with the matching subject's Grade Predictor, Grade Boundary Tracker and a Tutopiya specialist tutor.

Go deeper with expert one-to-one tuition

A specialist tutor can walk through exam technique with your child live — and identify exactly where marks are being lost.