This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 15 Plant Growth And Development – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 15 Plant Growth And Development Quiz 20 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The main product of photosynthesis is: A) Carbon dioxide. B) Nitrogen. C) Sugar. D) Water. Show Answer Correct Answer: C) Sugar. 2. What would be the effect of removing the cork cambium from a woody stem? A) The plant would stop growing taller. B) The plant would be unable to produce secondary phloem. C) The stem would lose its protective outer layer against pathogens. D) The plant would stop absorbing water. Show Answer Correct Answer: C) The stem would lose its protective outer layer against pathogens. 3. What is growth? A) It is the quantitative change in form in an organism over a period of time. B) It is quantitative increase in size in an organism over a period of time. C) It is the change in the degree of specialization of tissues. D) It is a measure of an increase in size of an object. Show Answer Correct Answer: B) It is quantitative increase in size in an organism over a period of time. 4. Delay aging process A) Auxin. B) Cytokinin. C) Gibberellin. D) Abscisic acid. Show Answer Correct Answer: B) Cytokinin. 5. The ability of a seed or plant to grow and function normally. A) Viability. B) Germination. C) Vigorous. D) Hardening off. Show Answer Correct Answer: A) Viability. 6. The process/chemical reaction that uses sugars and oxygen to produce energy for the plant. A) Chlorophyll. B) Photosynthesis. C) Chloroplast. D) Respiration. Show Answer Correct Answer: D) Respiration. 7. The Scientific name of Rice is A) Oryza Sativa L. B) Zea Mays L. C) Triticum vulgare L. D) Avena sativa L. Show Answer Correct Answer: A) Oryza Sativa L. 8. Can plants germinate without soil? A) No, soil is always required. B) Yes, if they have water. C) Only during winter months. D) Only with artificial light. Show Answer Correct Answer: B) Yes, if they have water. 9. Dominates terminal end of stem, preventing lateral stem from growing A) Auxin. B) Gibberellin. C) Cytokinin. D) Ethylene. Show Answer Correct Answer: A) Auxin. 10. Fertilised ovule forms the ..... A) Seed. B) Testa. C) Fruit. D) Cotyledon. Show Answer Correct Answer: A) Seed. 11. Moves away from light A) Auxin. B) Gibberellin. C) Cytokinin. D) Ethylene. Show Answer Correct Answer: A) Auxin. 12. A type of sugar that is the primary source of energy for the body's cells A) Fructose. B) Sucrose. C) Glucose. D) Lactose. Show Answer Correct Answer: C) Glucose. 13. Parthenocarpy is induced by A) AUXINS. B) CYTOKININS. C) ETHYLENE. D) GIBBERELLINS. Show Answer Correct Answer: B) CYTOKININS. 14. Which PGR is a natural growth inhibitor? A) Auxin. B) Gibberellin. C) Cytokinin. D) Abscisic Acid. Show Answer Correct Answer: D) Abscisic Acid. 15. Repair A) Auxin. B) Gibberellin. C) Cytokinin. D) Ethylene. Show Answer Correct Answer: C) Cytokinin. 16. Where are apical meristems located? A) In the middle of the stem. B) At the tips of shoots and roots. C) Only in the leaves. D) Between the xylem and phloem. Show Answer Correct Answer: B) At the tips of shoots and roots. 17. The type of growth in a plant that causes stems and other areas to become thicker. A) Primary growth. B) Secondary growth. C) Cell enlargement. D) Turgor. Show Answer Correct Answer: B) Secondary growth. 18. It is caused by conditions outside of the seeds embryo A) Bud dormancy. B) Endogenous. C) Exogenous. D) Seed dormancy. Show Answer Correct Answer: C) Exogenous. 19. The portion of a stem in a plant that is between two successive leaves or leaf pairs. A) Node. B) Internode. C) Cambium. D) Turgor. Show Answer Correct Answer: B) Internode. 20. The kalin that affects root formation is ..... A) Rizokalin. B) Filokalin. C) Kaulokalin. D) Antokalin. Show Answer Correct Answer: A) Rizokalin. 21. What is the process of a seed sprouting and developing into a plant called? A) Photosynthesis. B) Germination. C) Fertilization. D) Transpiration. Show Answer Correct Answer: B) Germination. 22. Component responsible for the bakane disease of the rice seedling A) Gibberlins. B) Gibberellins. C) Gibbirelins. D) Giberlins. Show Answer Correct Answer: B) Gibberellins. 23. Precursor of Auxin is A) Tryptophan. B) Acetyl Co-A. C) Zinc. D) N-acetyl glcosamine. Show Answer Correct Answer: A) Tryptophan. 24. What is the fine powder that is found on flowers? A) Bugs. B) Dust. C) Sugar. D) Pollen. Show Answer Correct Answer: D) Pollen. 25. If placed in a dark place, the sprouts will grow much longer than normal with pale colored stems and leaves. This is due to an excess of the hormone auxin in the sprouts, this event is known as ..... A) Etiolation. B) Iimbibition. C) Dormancy. D) Maturation. E) Diffusion. Show Answer Correct Answer: A) Etiolation. ← PreviousNext →Related QuizzesClass 11 Biology Chapter 15 Plant Growth And Development Quiz 1Class 11 Biology Chapter 15 Plant Growth And Development Quiz 2Class 11 Biology Chapter 15 Plant Growth And Development Quiz 3Class 11 Biology Chapter 15 Plant Growth And Development Quiz 4Class 11 Biology Chapter 15 Plant Growth And Development Quiz 5Class 11 Biology Chapter 15 Plant Growth And Development Quiz 6Class 11 Biology Chapter 15 Plant Growth And Development Quiz 7Class 11 Biology Chapter 15 Plant Growth And Development Quiz 8Class 11 Biology Chapter 15 Plant Growth And Development Quiz 9Class 11 Biology Chapter 15 Plant Growth And Development Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books