Summary

• Description:

  The MS Word document comprises Nakuru North Joint Evaluation Biology Paper 1 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 1 (Theory) Nakuru North Joint Evaluation Mock 2025 examination (July/August 2025).

  • Duration: 2 Hours
  • Total Marks: 80
  • Number of Questions: 35 (Questions 1–35)
  • Marking Scheme: The marking scheme is in a different document.

  It covers the following topics:

  • Respiration: respiratory quotient in plants; anaerobic respiration end products in animals
  • Classification: class of termites
  • Cell biology: contractile vacuole function; mitochondria function
  • Genetics and variation: colchicine and polyploidy; gene crosses and genotypic ratios (maize grain colour)
  • Human physiology: thermoregulation (elephant ears); deep voice after vasectomy; hypothalamus and temperature regulation
  • Coordination: Eustachian tube function; reflex arc and types of neurons; synaptic transmission; locations of neuron cell bodies in the spinal cord
  • Support and movement: identification of a vertebra from a diagram and justification
  • Transport and gaseous exchange: role of bile salts; roles of ciliated cells; cartilage rings in the trachea; structures for gaseous exchange in plants
  • Plant physiology: tropic responses (tendrils curling around supports) and related hormones; pollination agent in maize; xylem components; palisade cell adaptations
  • Microbiology and immunity: causes of drug resistance; importance of screening blood before transfusion
  • Reproduction and parasitology: roles of the gynecophoric canal in male Schistosoma
  • Eye and optics: function of the ligament in the mammalian eye; eye defects (short-sightedness) and correction; microscope lens function; importance of a cover slip
  • Growth and cell division: differences between mitosis and meiosis
  • Ecology and environmental management: effects of dumping untreated sewage into water sources
  • Characteristics of living organisms: spore release in Rhizopus as an illustration of a life process
  • Biology in society: usefulness of biological knowledge in fostering international cooperation
  • Practical biology: identification and function of common biology apparatus from a diagram
• Category:

  Mock Past Papers
• Level:

  Form 4
• Subject:

  BIOLOGY

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