Form Four Biology regional mock papers
The 2026 zonal mock sample is free to try here
Regional and zonal mock exams are set by education offices and groups of schools before the national exam. Use them to test yourself under exam conditions, then check your work with the marking scheme.
Try a free Form Four Biology sample
Three questions from the 2026 zonal mock exam (033/1 Biology 1)
How to use this sample: choose an option and click “Check Answer”. For the written question, answer on paper first, then click “View Answer”.
Multiple choice
(ii) A patient has been diagnosed with a low level of sugar in the blood. Which hormone will be recommended to regulate the patient's blood sugar level?
(iv) Which structure prevents food from entering the windpipe?
(x) Which changes are observed during inspiration?
Written question
5. During an experiment by Form Four students at Peramiho Girls Secondary School, they discovered that plants lose water through the stomata in the leaves.
(a) Name the physiological process investigated in this experiment.
(b) Outline four significances of the physiological process investigated.
Suggested answer and marking guide
(a) Process
Transpiration.
(b) Significance of transpiration
- Creates transpiration pull: Loss of water from the leaves pulls water and mineral salts up through the xylem.
- Cooling: Evaporation of water from the leaf surfaces cools the plant, especially in hot conditions.
- Distribution of mineral salts: The transpiration stream carries dissolved mineral salts from the roots to the aerial parts.
- Removal of excess water: Transpiration is a way of losing excess water from the aerial parts of the plant.
Like it? Get more regional mock papers on the Click Online Academy app, or try the full 2026 Form Four Biology terminal exam on this website.
What Form Four Biology exams cover
Topics tested in the 2026 zonal mock paper
Paper 1 questions draw on work from across the course. The 2026 zonal mock paper tested these areas:
- Cell structure: prokaryotic cells and osmosis in plant cells
- Hormones: blood sugar, water balance and the nervous system
- Classification: tapeworms, conifers and flowering plants
- Breathing and respiration, including anaerobic respiration and oxygen debt
- The skeleton: axial and appendicular components
- Transpiration and the movement of water in plants
- Temperature regulation in mammals
- Cell division and genetics: meiosis and incomplete dominance
- Photosynthesis and the water cycle
- Communicable diseases, including HIV and AIDS
How to revise with Form Four Biology exams
A simple routine that works with any paper
Set a timer for the full three hours and answer on paper before opening any answers. Mark yourself with the marking guide, list the topics where you lost marks, and then revise those topics with the Form Four Biology topical exams before trying the next paper.
Practise more regional mock papers on the app
Get Form 4 Biology regional mock papers with marking schemes, plus mid-term, terminal, pre-national and NECTA review papers, with progress tracking and offline downloads. Free to download on Google Play.
Get Form Four Biology regional exams on Google Play Back to all Form Four examsFrequently asked questions: Form 4 Biology regional exams
Which Form Four Biology regional exams are available?
This page has a free sample from the 2026 zonal mock exam (033/1 Biology 1), with interactive answers. More Form Four Biology mock papers with marking schemes are on the Click Online Academy app.
What are regional mock exams?
Regional and zonal mock exams are practice papers set for Form Four candidates before the national examination. They follow the national format, so they show you what to improve before the CSEE.
How do I use the interactive sample?
Choose an option for each multiple-choice question and click Check Answer to see whether you are right and why. For the written question, answer on paper first, then click View Answer to see the suggested answer and marking guide.
What does a Form Four Biology Paper 1 look like?
The 2026 zonal mock paper (033/1 Biology 1) lasts three hours and has eleven questions. Section A has multiple-choice and matching items, Section B has six short-essay questions, and in Section C you answer two of three essay questions.
Continue with Form Four Biology exams
Next in the exam sequence
Regional mock papers come after the pre-national exams. Next, try the NECTA review papers for the national format, and revise weak topics with the topical exams.
Or go back to all Form Four Biology exams, all Form 4 exams or all secondary exams.