Summary

• Description:

  The MS Word document comprises Nakuru North Joint Evaluation Biology Paper 2 2025 Mock Exam with Marking Scheme. The PDF version is also available upon your request. The marking scheme is in a different document.

  It is a Form Four Biology Paper 2 (Theory) Nakuru North Joint Evaluation Mock 2025 examination (July/August 2025).

  • Duration: 2 Hours
  • Total Marks: 100
  • Number of Questions: 8 (Section A: Questions 1–5; Section B: Questions 6–8)
  • Paper Structure: Two sections (A and B). Answer all questions in Section A. In Section B, answer Question 6 (Compulsory) and either Question 7 or 8.
  • Marking Scheme: The marking scheme is in a different document.

  It covers the following topics:

  • Genetics and inheritance (sickle-cell trait/disease crosses, probability, and malaria resistance)
  • Cell biology (why mature red blood cells do not divide)
  • Organic evolution (serological tests and evolutionary relationships among animals)
  • Microscopy skills (staining purpose, animal cell organelles absent in plants, magnification calculations, light control and eye analogy)
  • Plant reproduction (fruit type identification, seed dispersal methods and processes, placentation and its role in seed development)
  • Homeostasis (negative feedback principle; blood sugar regulation; diabetes-related outcomes; hormones involved)
  • Excretion (why plants have less elaborate excretory systems than animals)
  • Enzymes (temperature effects on enzyme activity, optimum temperature determination, denaturation at high temperatures, graph plotting, and other factors affecting enzyme activity)
  • Digestion (products of complete digestion of sucrose)
  • Locomotion in fish (movement in finned bony fish such as tilapia)
  • Leaf anatomy and gaseous exchange (structural adaptations of guard cells)
  • Flowering plant reproduction (double fertilization in angiosperms)
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  BIOLOGY

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