Summary

• Description:

  The MS Word document comprises Mumias West Sub-County Joint Evaluation Biology Paper 2 May 2026 Pre-Mock Exam with Marking Scheme. The marking scheme is in a different document.

  It was a KCSE Biology Paper 2 examination. This paper tests higher-order biological reasoning, including genetics, enzyme activity, cell structure, plant physiology, and reproductive biology through structured and long-essay questions requiring data interpretation and hypothesis testing.

  • Month Administered: May 2026
  • Duration: 2 hours
  • Total Marks: 80
  • Number of Questions: 8 (Questions 1–5 in Section A; Questions 6–8 in Section B)
  • Structure: Section A (Questions 1–5, 8 marks each, 40 marks total) — answer all; Section B (Question 6 compulsory at 20 marks, plus either Question 7 or 8 at 20 marks)

  It covers the following topics:

  • Section A
    • Genetics — sickle cell anaemia (co-dominance, phenotype ratios, Punnett squares)
    • Prevalence of sickle cell trait in tropical vs. temperate regions
    • Enzyme activity — effect of temperature on salivary amylase and starch digestion
    • Sperm cell structure — labelling, adaptations, and DNA location
    • Kidney nephron structure and functions
  • Section B
    • Plant hormones — effect of gibberellic acid and apical dominance on lateral bud growth (graph drawing and data interpretation)
    • Hormones in the mammalian female reproductive cycle
    • Adaptations of the small intestine to its functions
• File Size:

  1.42 MB
• Length:

  9 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  BIOLOGY
• Posted By:

  Caleb_Peter

Enter your details below to initiate a payment using MPESA.