Summary

• Description:

  The PDF document comprises Bungoma South Cluster Biology Paper 3 2026 Pre-Mock Exam with Answers (Marking Scheme). The marking scheme is in a different document.

  It was a KCSE Form 4 Biology Paper 3 examination.

  This practical examination evaluates hands-on biological investigations including specimen classification, comparative anatomy, food test biochemistry, and physiological experiments. It assesses acute observational skills, biological drawings, and experimental deduction.

  • Month Administered: July 2026
  • Duration: 1¾ Hours
  • Total Marks: 40 Marks
  • Number of Questions: 3 Questions (Questions 1 – 3 compulsory)
  • Structure: Three structured practical laboratory questions: Question 1 (10 marks), Question 2 (13 marks), and Question 3 (17 marks).

  It covers the following topics:

  • Question 1:
    • Floral morphology and reproductive adaptations
    • Modes of pollination: insect pollination vs. wind pollination adaptations
    • Comparative analysis of monocotyledonous and dicotyledonous floral structures
  • Question 2:
    • Mammalian osteology: identification of appendicular skeleton bones (humerus, scapula, femur, tibia, and radius-ulna)
    • Anatomical locations, articulating joints, and bone structural features (condyles, glenoid cavity, olecranon process)
  • Question 3:
    • Fruit morphology, classification, placentation types, and dispersal adaptations
    • Qualitative biochemical food tests for nutritional components in plant extracts
    • Cell physiology: investigating osmosis in plant tissues using hypertonic/hypotonic solutions and physiological significance
• File Size:

  547.47 KB
• Length:

  6 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  BIOLOGY
• Posted By:

  Caleb_Peter

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