Summary

• Description:

  The PDF document comprises THE SUPER LEAGUE JOINT NATIONAL MOCKS Biology Paper 2 2026 Mock Exam with Answers (Marking Scheme). The marking scheme is in a different document.

  It was a KCSE Biology 231/2 examination.

  This structured theory paper evaluates analytical problem-solving, physiological interpretations, ecological mathematics, and comprehensive essay synthesis in biology. It is designed to test deep conceptual understanding of genetics, circulatory systems, mammalian homeostasis, and metabolic enzymes.

  • Duration: 2 Hours
  • Total Marks: 80
  • Number of Questions: 8 (Questions 1 to 8)
  • Structure: The paper is divided into two sections: Section A (40 marks) containing five compulsory structured questions (Questions 1 to 5, each carrying 8 marks); and Section B (40 marks) consisting of Question 6 (compulsory data analysis, 20 marks) and an alternative choice between essay Questions 7 and 8 (20 marks).

  It covers the following topics:

  • Section A
    • Genetics and Inheritance (Incomplete dominance/intermediate inheritance, monohybrid genetic cross, multiple alleles)
    • Cell Physiology (Osmotic behavior of red blood cells and plant cells in hypotonic, hypertonic, and isotonic solutions; crenation and haemolysis)
    • Circulatory System and Microcirculation (Tissue fluid formation, capillary exchange, exchange of respiratory gases and nutrients)
    • Classification and Ecology (Arthropoda characteristics, capture-recapture method for ecological population estimation)
    • Respiration (Gaseous exchange set-up using lime water, anaerobic respiration in muscles, muscle fatigue)
  • Section B
    • Enzyme Action and Temperature Relationships (Graphical plotting, optimal temperature, denaturation, digestive enzymes in acidic conditions)
    • Mammalian Cardiovascular System (Structural and functional adaptations of the mammalian heart, cascade mechanism of blood clotting)
    • Homeostasis and Plant Excretion (Blood glucose regulation by the liver, biological and economic importance of excretory products in plants)
• File Size:

  492.12 KB
• Length:

  9 pages
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  Biology
• Posted By:

  Caleb_Peter

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