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Revise paper by paper: take the Biology challenge for Paper 1, Paper 2, Paper 3.
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KCSE Biology revision quiz
Biology papers lean heavily on recall of processes and definitions across cells, transport, coordination, reproduction, genetics and ecology. This free quiz gives you ten KCSE-level Biology questions, marks each one instantly and shows the working, then gives your score, rank, a WhatsApp share and a certificate.
Topics covered
The 31 questions cover Cell biology, Cell physiology, Nutrition in plants, Nutrition in animals, Transport in animals, Transport in plants, Gaseous exchange, Respiration, Excretion and homeostasis, Coordination, Reproduction, Genetics, Ecology, Evolution, Classification, Support and movement.
These are original practice questions written by the CBC Guide team at KCSE level. They are not official KNEC papers or predictions of the 2026 papers. Spot an error? Tell us.
For longer practice, try the full list of KCSE quizzes or the KCSE Biology practice papers, the KCSE 2026 timetable and the KCSE grading guide. Other subjects: Mathematics, English, Kiswahili, Chemistry, Physics, History & Government, Geography, CRE, Business Studies, Agriculture, Computer Studies, Home Science.
Frequently asked questions
Are these official KCSE Biology questions?
No. These are original practice questions written by the CBC Guide team at KCSE level. They are not official KNEC papers or predictions of the 2026 papers.
How many questions are in the KCSE Biology quiz?
The bank has 31 questions. Each go picks ten at random, so trying again gives a different mix.
Is the KCSE Biology quiz free?
Yes, your first quiz is free. After that a Day Pass (KSh 20) or Weekly Pass (KSh 100) unlocks unlimited quizzes and full practice papers.
When is KCSE 2026?
The written papers run from 2 to 20 November 2026. Check the KCSE timetable guide for each paper's date.