← All past papers

Biology 5090

Cambridge O Levels · 12 sessions · 2019–2025

Biology notes →
Year
Session
SessionPaperQuestion paperMark scheme
May/June 2025Paper 1 · Variant 11QP ↓MS ↓
May/June 2025Paper 1 · Variant 12QP ↓MS ↓
May/June 2025Paper 1 · Variant 13QP ↓MS ↓
May/June 2025Paper 2 · Variant 21QP ↓MS ↓
May/June 2025Paper 2 · Variant 22QP ↓MS ↓
May/June 2025Paper 2 · Variant 23QP ↓MS ↓
May/June 2025Paper 4 · Variant 41QP ↓MS ↓
May/June 2025Paper 4 · Variant 42QP ↓MS ↓
May/June 2025Paper 4 · Variant 43QP ↓MS ↓

Links open public archives in a new tab. A dash means that matching file is not present in this catalog.

Exam tips for Biology

  1. 01Paper 1 (MCQ): know MRS NERG for life processes and all organelle functions.
  2. 02Osmosis: 'movement of water molecules from high water potential to low water potential through a selectively permeable membrane'.
  3. 03Photosynthesis: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ — balanced equation, not shorthand.
  4. 04Paper 4 (Alt to Practical): biological drawings must be large, clear, and fully labelled.
  5. 05Genetics: practise Punnett squares for both monohybrid and codominance crosses.