How to Answer "Outline" Questions in IGCSE Biology
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Reviewer participation may vary by guide. Checked against Cambridge IGCSE Biology 0610 (2026–2028); last reviewed August 2026.
Key point
Outline means give the main points without excessive detail. Cover all key stages briefly: one point per mark.
"Outline" means give the main points or key steps without going into fine detail. Think of it as a summary: cover all the essential stages but do not expand on each one the way you would for a describe or explain question.
Outline vs describe
Describe = give a detailed account. Outline = give the key points only. An outline answer covers more ground in fewer words.
If asked to outline the process of digestion, list the main organs and what happens at each: do not detail every enzyme and its specific substrate.
How to structure an outline
Use short, clear statements. Each statement should cover one key point. Do not elaborate unless the question asks for it. Bullet points or numbered lists are helpful for keeping your answer concise.
Mark allocation
Outline questions usually carry 3–5 marks. Each mark requires one distinct key point. Spending three sentences on one point and missing another costs you marks.
Frequently asked questions
Should I give reasons in an outline answer?
Only if the question also says "explain". A pure outline answer just needs the main facts or steps.