Summary

• Description:

  The PDF document comprises MURANG'A EAST JOINT Biology Paper 3 2026 Mock Exam with Answers (Marking Scheme). The marking scheme is in a different document.

  It was a KCSE Biology 231/3 practical examination.

  This practical paper evaluates candidates' skills in biological specimen observation, biological drawing, qualitative biochemical food tests, dichotomous keys, and anatomical analysis.

  • Duration: 1 Hour 45 Minutes
  • Total Marks: 40 Marks
  • Number of Questions: 3 Questions (Questions 1 - 3)
  • Structure: 3 compulsory practical examination questions: Question 1 (19 Marks), Question 2 (12 Marks), and Question 3 (9 Marks).

  It covers the following topics:

  • Plant reproductive morphology: Fruit/seed identification, transverse section diagrammatic drawings, classification of fruit types, and dispersal agents
  • Biochemistry and food tests: Qualitative laboratory procedures, reagent reactions, observations, and conclusions for food substances
  • Taxonomy and classification: Construction of a dichotomous key based on morphological leaf features (venation, leaf type, margins, leaflet arrangement)
  • Plant taxonomy: Systematic classification of Zea mays (maize) from Kingdom to Class level
  • Respiratory physiology: Mammalian alveolus histology, path of diffusion of respiratory gases, adaptations of gaseous exchange surfaces, and brain control of breathing
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  BIOLOGY

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