Summary

• Description:

  The PDF document comprises Kapsabet High School Biology Paper 1 2025 Mock Exam with Marking Scheme. The marking scheme is in a different document.

  The exam paper contains 26 questions and should be completed by learners within a duration of 2 hours.

  The paper is intended for Form 4 learners and assesses understanding and application of KCSE Biology theory concepts through structured questions, diagrams, and short explanations.

  It covers the following topics:

  • Chemical composition of protoplasm and nutrition (respiratory substrates)
  • Gene mutation and effects (e.g., loss of skin pigment)
  • Hormones and target organs (e.g., ADH, glucagon)
  • Cell division and reproduction (binary fission, sexual reproduction)
  • Seedling structure and classification (monocot characteristics)
  • Food tests and carbohydrate chemistry (hydrolysis, Benedict’s test, storage forms)
  • Blood clotting and roles of clotting factors/enzymes
  • Pollination and adaptations of flowers to pollinating agents
  • The eye: differences between rods and cones
  • Neurones and nerve impulse transmission (including myelin-related features)
  • Human evolution and features of modern man
  • Respiration in living organisms and factors affecting its rate
  • Biotechnology and its importance in modern science
  • Muscles: comparison of biceps and gut muscles
  • Variation and evolution; negative feedback mechanisms
  • Taxonomy and contributions of Carolus Linnaeus
  • Microscopy and magnification calculations
  • Experiments on germinating seeds (respiration investigations)
  • Human skeletal system: vertebral column structure and movement
  • Photosynthesis experiments and interpretation of results
  • Genetics: sex-linked inheritance using Drosophila
  • Plant growth responses: phototropism under unilateral light
  • Heart structure and cardiac cycle (including valve identification)
  • Transpiration adaptations (e.g., sunken stomata)
  • Human reproduction: ovulation hormones and menstruation after fertilization
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  BIOLOGY

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