Summary

• Description:

  The PDF document comprises Mirror Jet 2024 Biology Paper 2 Exam with Answers and Marking Scheme. The marking scheme is in a different document.

  It was a KCSE Biology (Theory) Paper 2 (231/2) examination administered during the Mirror Jet Exams Term Two 2024 series.

  • Duration: 2 Hours
  • Total Marks: 100
  • Number of Questions: 8
  • Paper Structure: Two Sections (A and B)

  Paper Structure:

  • Section A: Questions 1–5 (40 marks). Candidates answered all structured questions covering practical biology concepts, genetics, plant physiology and human physiology.
  • Section B: Questions 6–8 (60 marks). Question 6 was compulsory while candidates answered either Question 7 or Question 8.

  It covered the following topics:

  • Functions and manipulation of parts of a light microscope
  • Genetic inheritance and coat colour patterns in rabbits
  • Codominance and examples of codominant traits in humans
  • Fruit dispersal adaptations in plants
  • Hormonal regulation of menstruation including luteinising hormone and oxytocin
  • Recovery of wilting plants through water absorption and turgor pressure
  • Plant support tissues such as collenchyma and sclerenchyma
  • Functions of pectoral and pelvic fins in fish locomotion
  • Adaptations of the human eye to changes in light intensity
  • Nutrition and nourishment of the eye and the role of the blind spot
  • Analysis and interpretation of experimental data involving blood glucose levels
  • Graph plotting and interpretation of biological experimental results
  • Physiological regulation of blood glucose levels after feeding
  • Nitrogen cycle and conversion of atmospheric nitrogen into forms usable by animals
  • Environmental factors affecting the rate of transpiration in flowering plants
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  BIOLOGY

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