End of Term Integrated Science Exam - Form Three
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Questions and Answers

Which of the following is a benefit of using ladybugs for controlling aphid populations?

  • They require chemical pesticides to thrive.
  • They reproduce quickly. (correct)
  • They can harm beneficial plants.
  • They consume only a specific type of pest.

    • Mechanical pest control methods include the use of traps and barriers.

    True

    What process is primarily responsible for the movement of water from the roots to the leaves of a plant?

  • Cohesion
  • Photosynthesis
  • Transpiration (correct)
  • Respiration

    • What is the primary pest control method used when ladybugs are introduced to a garden?

    <p>Biological pest control</p> Signup and view all the answers

    Adhesion helps in the movement of water in plants by allowing water molecules to stick to the walls of xylem vessels.

    <p>True</p> Signup and view all the answers

    Sandy soils are known for their __________ water retention characteristics.

    <p>low</p> Signup and view all the answers

    What is the main role of cohesion in water transport in plants?

    <p>Cohesion allows water molecules to stick together, facilitating the continuous column of water in the xylem.</p> Signup and view all the answers

    Match the flower part with its function:

    <p>Filament = Holds up the anther Petal = Attract Pollinators Stigma = The sticky part of the flower that collects pollen Pistil = The ovule producing part of the flower</p> Signup and view all the answers

    The process by which plants convert light energy into chemical energy is called ______.

    <p>photosynthesis</p> Signup and view all the answers

    Which of the following best defines respiration in plants?

    <p>The breakdown of glucose to release energy.</p> Signup and view all the answers

    Which of the following is true about clay soil compared to sandy soil?

    <p>Clay soil retains more water.</p> Signup and view all the answers

    Give two examples of mechanical pest control methods.

    <p>Traps and barriers</p> Signup and view all the answers

    Both photosynthesis and respiration occur in the chloroplasts of plant cells.

    <p>False</p> Signup and view all the answers

    Match the process with its definition:

    <p>Cohesion = Attraction between water molecules Transpiration = Evaporation of water from plant leaves Photosynthesis = Conversion of light energy to chemical energy Respiration = Breakdown of glucose to release energy</p> Signup and view all the answers

    Clay soil retains __________ water compared to sandy soil.

    <p>more</p> Signup and view all the answers

    In biological pest control, natural enemies are used to manage ______ populations.

    <p>pest</p> Signup and view all the answers

    How do plants primarily move water from their roots to their leaves?

    <p>Via transpiration pull</p> Signup and view all the answers

    Xylem's role in plants is to absorb sunlight.

    <p>False</p> Signup and view all the answers

    What is the process called when water evaporates from the leaves, creating a pull to move water upward?

    <p>Transpiration</p> Signup and view all the answers

    The function of stomata in plants is to control water _____.

    <p>loss</p> Signup and view all the answers

    Which word equation correctly describes aerobic respiration?

    <p>Glucose + Oxygen → Carbon Dioxide + Water + Energy</p> Signup and view all the answers

    Which of the following is a byproduct of respiration?

    <p>Carbon Dioxide</p> Signup and view all the answers

    Match the following plant pests to their classifications:

    <p>Ladybug = Beneficial insect Rust = Fungal plant pest Grasshopper = Insect pest Earthworm = Soil aerator</p> Signup and view all the answers

    Which of the following can be an environmental effect of chemical plant control methods?

    <p>Water contamination</p> Signup and view all the answers

    Study Notes

    End of Term Examination - Form Three Integrated Science

    • Exam Duration: 1 hour and 30 minutes
    • Exam Structure: Three sections
      • Section One: 20 multiple choice questions (1 mark each)
      • Section Two: 11 structured questions
      • Section Three: Two options; answer all questions in this section

    Section One - Multiple Choice

    • Question 1: Which structure transports water and minerals in plants? (Xylem)
    • Question 2: What is the main function of phloem? (Transport of sugars and nutrients)
    • Question 3: Primary gas used by humans in cellular respiration? (Oxygen)
    • Question 4: Part of the cell responsible for ATP production in aerobic respiration? (Mitochondria)
    • Question 5: Byproduct of anaerobic respiration in yeast cells? (Ethanol and Carbon Dioxide)
    • Question 6: Primary function of photosynthesis in plants? (Convert light energy into chemical energy stored in glucose)
    • Question 7: Word equation for photosynthesis? (Carbon dioxide + Water + Light energy --> Glucose + Oxygen)
    • Question 8: Pigment primarily responsible for absorbing light energy during photosynthesis? (Chlorophyll)
    • Question 9: Why do we boil a leaf in water before testing for starch? (To remove chlorophyll and soften the leaf)
    • Question 10: Reagent to test for starch in a leaf? (Iodine solution)
    • Question 11: What color indicates the presence of starch when using iodine solution? (Blue-black)
    • Question 12: How do plants mainly transport water from roots to leaves? (Transpiration pull)
    • Question 13: What role does the xylem play in water movement? (Transports water from roots to leaves)
    • Question 14: Process where water evaporates from leaves, creating the pull for water movement? (Transpiration)
    • Question 15: Function of stomata in water movement? (Control water loss by regulating gaseous exchange)
    • Question 16: Word equation for aerobic respiration? (Glucose + Oxygen → Carbon Dioxide + Water + Energy)
    • Question 17: Byproduct of respiration? (Carbon Dioxide)
    • Question 18: Example of an insect considered a plant pest? (Earthworm)
    • Question 19: Example of an environmental effect of chemical plant control methods? (Water contamination)
    • Question 20: Example of a fungal plant pest? (Rust)

    Section Two - Structured Questions

    • Question 1: Diagram analysis related to soil type determination
    • Question 2: Chlorophyll location and importance
    • Question 3: Water transport in plants (cohesion, adhesion, transpiration)
    • Question 4: Effectiveness of using a celery stalk and food coloring experiment. Also, strengths and limitations
    • Question 5: Define respiration
    • Question 6: Define photosynthesis
    • Question 7: Interdependence of respiration and photosynthesis
    • Question 8: Benefits and risks of using ladybugs as pest control
    • Question 9: Mechanical pest control methods and their strengths/weaknesses over chemical methods
    • Question 10: Three characteristics of sandy soil
    • Question 11: Two ways clay soil differs from sandy soil in water retention

    Section Three - Choose One Question

    • Question 1: Flower parts and their functions
    • Question 2: Plant part that produces pollen grains OR What is the main function of chloroplast?
    • Question 3: Soil types and characteristics

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    3rd Form Upper Exam - Science

    Description

    Prepare for your End of Term Examination in Integrated Science for Form Three with this comprehensive quiz. It includes multiple choice questions, structured questions, and options designed to test your knowledge on essential scientific concepts. Get ready to excel with practice on topics such as plant biology and cellular respiration.

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