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Past papers/IB/IB Biology SL/2026/Paper 1B TZ3

IB Diploma · IB Biology Standard Level

IB Biology SL May 2026 Paper 1B TZ3

25 marks
TZ3

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P1A TZ1 P1A TZ2 P1A TZ3 P2 TZ1 P2 TZ2 P2 TZ3

Paper 1B · other sessions

Previous · November 2025Paper 1B TZ3

All 2026 papers Every Paper 1B

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What's in this paper

4 questions · 25 marks. Topics come from our question bank.

Q1Molecules and cells5 marks
Q2Organisms and body systems8 marks
Q3Molecules and cells6 marks
Q4Information, inheritance and evolution6 marks

Also listed asIB Biology SL May 2026 Paper 1B TZ3