ICSE 10 Biology Plant Coordination Test 4

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    Biology Practice: Plant Coordination (Mock Test 4 - Expert Experimental & Clinical Logic)

    1. A seedling is placed in a dark box with a small hole on one side through which light enters. After 48 hours, the stem bends toward the hole. What is the experimental conclusion?

    2. In an experiment, the "Apical Bud" of a tea plant is removed. What clinical observation will likely follow?

    3. A clinician applies "Ethylene gas" to a room filled with raw green bananas. What is the expected experimental outcome?

    4. A potted plant is kept horizontally on a "Clinostat" which is rotating slowly. What will be the direction of growth for the root and shoot?

    5. Why do farmers spray "Auxins" on unpollinated flowers of tomatoes?

    6. A plant is kept in a dry room, and its "Stomata" close even during the day. This is a clinical response to the production of:

    7. If the "Root Tip" is removed, the root stops growing downward. This proves that the stimulus of gravity is perceived by:

    8. In a lab experiment, "Synthetic Auxins" (2,4-D) are applied to a lawn. The broad-leaved weeds die but the grass survives. This is because:

    9. A researcher finds that a "Genetic Dwarf" plant grows to normal height after treatment with a specific hormone. The hormone is:

    10. The "Sleep Movements" (Nyctinasty) of certain flower petals closing at night are controlled by:

    11. A seedling is placed in a porous pot surrounded by moist soil on one side only. The roots curve toward the moisture. This is an experiment to demonstrate:

    12. What is the clinical significance of "Senescence" being delayed by Cytokinins?

    13. In "Phototropism," why does the shaded side of the stem grow faster?

    14. If a plant is treated with "Gibberellic Acid" and the internodes become very long, the process is called:

    15. The rapid drooping of leaves in Mimosa when touched is "reversible." This implies that the coordination is based on:

    16. A gardener wants to produce "Seedless Grapes." Which clinical treatment should be applied to the flowers?

    17. In the experiment with a "Clinostat," why must it rotate "slowly"?

    18. If a "Root" is exposed to a high concentration of Auxin, its growth:

    19. Which clinical observation proves that "Auxin" is responsible for Phototropism?

    20. The "Abscission" of ripe fruits is an experimental example of coordination between: