Summary

• Description:

  The PDF document comprises Nyahokakira Cluster II Biology Paper 3 2026 Mock Exam with Marking Scheme. The marking scheme is in a different document.

  It was a KCSE Biology Paper 3 (231/3) Practical examination.

  This practical examination evaluates experimental competencies including enzyme-catalyzed reactions, biochemical food testing, specimen classification, and anatomical comparisons. Candidates preparing for national practicals will find this PDF download invaluable for self-evaluation alongside standard marking scheme answers.

  • Month Administered: July 2026
  • Duration: 1 hour 45 minutes
  • Total Marks: 40 marks
  • Number of Questions: 3 questions (Questions 1–3)
  • Structure: Three compulsory laboratory practical questions comprising wet lab investigations, biological drawing, specimen identification, and physiological comparisons.

  It covers the following topics:

  •   Anaerobic respiration/fermentation in yeast and catalase enzyme activity in liver tissue
  •   Taxonomic classification and morphological adaptations of biological specimens
  •   Symbiotic nitrogen fixation: Legume root nodules and Rhizobium bacteria
  •   Biochemical testing of unknown extracts for carbohydrates, proteins, and reducing sugars
  •   Mammalian circulatory anatomy: Structural and functional comparison of arteries and veins
• File Size:

  619.74 KB
• Length:

  5 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  Biology
• Posted By:

  Caleb_Peter

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