Summary

• Description:

  The MS Word document comprises Form 3 Biology Mid Term 2 Exam 2025 with Marking Scheme. The PDF version is also available upon your request.

  The marking scheme is in a different document.

  The exam paper, titled "FORM THREE BIOLOGY MID TERM 2 EXAM - JUNE 2025" in the document, contains 19 questions. The total marks for the questions with specified marks is 54 (Question 6 does not have marks indicated). The duration for the exam is not specified in the provided document.

  The topics and skills assessed in the exam include:

  • Classification:
    • Characteristics of Kingdom Protoctista.
    • Spore producing structures in Bryophyta, Pteridophyta, and Fungi.
    • Identification, kingdom, and characteristics of a given unicellular organism (diagram provided).
    • Differences between class Monocotyledonae and class Dicotyledonae.
    • Main method of reproduction among bacteria.
    • Naming the class in Phylum Arthropoda with the largest number of individuals.
    • Two characteristics of Fungi.
    • Classification of a housefly (Kingdom, Phylum, Class).
    • Giving the class and reasons for classification of a bean plant and a bat.
    • Use of Colchicine (related to chromosomal changes, often in inducing polyploidy).
    • Construction and use of a dichotomous key for leaf specimens.
  • Ecology:
    • Construction of a food chain from given organisms in a dam.
    • Construction of an ecological pyramid from abundance data in a grassland habitat.
  • Excretion and Homeostasis:
    • Naming two kidney diseases.
    • Reasons for plants' ability to accumulate waste products.
    • Methods used by plants for excretion.
    • Conditions in human beings leading to the production of large quantities of dilute urine, release of aldosterone hormone, and release of glucagon hormone.
    • Test to carry out on a urine sample to determine if it was obtained from a person suffering from diabetes mellitus.
    • Changes that occur in arterioles in the human skin during thermoregulation.
• Category:

  Exams
• Level:

  Form 3
• Subject:

  BIOLOGY

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