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Leaving Certificate Biology Plant Responses 1 iQuiz

Test your knowledge of plant responses with this interactive iQuiz on various stimuli and tropisms in plants. Explore concepts like auxins, tropisms, and plant growth regulators in a fun and educational format.

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Leaving Certificate Biology Plant Responses 1 iQuiz

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  1. FIRST In PowerPoint 2007 if you see a Security Warning click HERE on Options… and then click on  Enable this content Leaving Certificate BiologyPlant Responses 1 iQuiz SECOND Press the F5 Key to Begin, Then click on this Blue Box

  2. Any change in the environment (internal or external) that causes a cell or organism to respond is called a … Impetus Pollutant Variation Stimulus

  3. The growth response of part of a plant to an external unidirectional stimulus is a … Tropism Stimulus Auxin IAA

  4. A plant’s response to touch is known as … Hydrotropism Thigmotropism Phototropism Geotropism

  5. The growth response of part of a plant away from an external unidirectional stimulus is a … Geotropism Negative tropism Positive tropism Hydrotropism

  6. What part of the plant produces plant growth regulators? Petioles Axillary buds Apical bud Meristems

  7. A plant stem will grow upwards in the dark. What type of tropism is this? Positive phototropism Negative phototropism Negative geotropism Positive geotropism

  8. The growth response of a plant to light is called … Geotropism Phototropism Hydrotropism Chemotropism

  9. A term for a chemical that is a plant growth regulator or a plant growth hormone (e.g. IAA), produced in the meristematic tissue of shoots, roots, young leaves and developing seeds. Auxin Hormone Gibberellin Cytokinin

  10. Tendrils of the sweet pea plant wrap themselves around wire, stakes and itself. This is an example of … Reflex action Thigmotropism Habit Conditioning

  11. Plant growth hormones, which increase the rate of cell division and inhibit aging of green tissues in plants are … Gibberellins Selective weed killers Cytokinins Coleoptiles

  12. The response of roots to fertilisers in the soil is an example of … Thigmotropism Phototropism Geotropism Chemotropism

  13. The suppression of the growth of the lateral buds by the terminal bud, thus allowing the stem to elongate is known as … Tropic response Abscission Apical dominance Negative tropism

  14. A plant growth substance (auxin) that stimulates cell elongation is … Cytokinin IAA Ethene or ethylene Selective weed killer

  15. A plant growth promoter which stimulates cell elongation and germination is a … Cytokinins Gibberellins Selective weed killer Coleoptiles

  16. Name a plant growth substance used to promote ripening of some fruits, de-greens others and promotes abscission and inhibits longitudinal growth. Tropism IAA Selective weed killer Ethene or ethylene

  17. Plant Responses 1 iQuiz How did you do? Click this Blue Box to find out

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