This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 15 Plant Growth And Development – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 15 Plant Growth And Development Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The following are internal factors that influence plant growth and development, namely ..... A) Genes and air. B) Genes and hormones. C) Water and light. D) Water and air. E) Water and hormones. Show Answer Correct Answer: B) Genes and hormones. 2. Decapitation is done in tea plantation to promote lateral growth. This fact is related to: A) Gibberallin. B) Auxin. C) Cytokinin. D) Ethylene. Show Answer Correct Answer: B) Auxin. 3. The development of a plant from a seed. A) Germination. B) Vigorous. C) Dormancy. D) Hardening off. Show Answer Correct Answer: A) Germination. 4. The amount of water vapor present in air expressed as a percentage of the amount needed for saturation at the same temperature. A) Respiration. B) Transpiration. C) Mutation. D) Relative humidity. Show Answer Correct Answer: D) Relative humidity. 5. The activity of a-amylase in the endosperm of a germinating seed of barley is induced by A) Ethylene. B) Cytokinin. C) IAA. D) Gibberellin. Show Answer Correct Answer: D) Gibberellin. 6. The lateral meristem consists of: A) Xylem and phloem. B) Parenchyma and collenchyma. C) Vascular cambium and cork cambium. D) Root cap and epidermis. Show Answer Correct Answer: C) Vascular cambium and cork cambium. 7. The type of growth in a plant that causes the plants roots and shoots to become longer. A) Primary growth. B) Secondary growth. C) Cell enlargement. D) Turgor. Show Answer Correct Answer: A) Primary growth. 8. Vegetative growth is the growth of: A) Flowers and fruits. B) Fruits and roots. C) Leaves, stems, and roots. D) Roots, seeds, and flowers. Show Answer Correct Answer: C) Leaves, stems, and roots. 9. The area of division (meristematic) is characterized by ..... A) Cells elongate. B) Cells form xylem and phloem. C) Cells always divide. D) Cells die and harden. Show Answer Correct Answer: C) Cells always divide. 10. Auxin and Cytokinin are antagonistic in which of the following functions? A) Cell division. B) Phototropism. C) Apical dominance. D) Geotropism. Show Answer Correct Answer: C) Apical dominance. 11. What part of the plant has pollen stick to it? A) Stem. B) Roots. C) Stigma. D) None of the above. Show Answer Correct Answer: C) Stigma. 12. All plants have the same optimal temperature. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 13. The historical experiment on canary grasses coleoptile as a first step in the discovery of auxin was conducted by- A) Darwin. B) Went. C) Kogl. D) Kurosawa. Show Answer Correct Answer: A) Darwin. 14. This hormone is why one bad apple can spoil the bunch A) Auxin. B) Cytokinin. C) Ethylene. D) Gibberellin. Show Answer Correct Answer: C) Ethylene. 15. Where does the intercalary meristem located? A) At the tip of radish root. B) At the tip of mung bean bud. C) At the top of coleus leaves. D) At the internodes of sugarcane plant. E) In between the xylem and phloem of mango tree. Show Answer Correct Answer: D) At the internodes of sugarcane plant. 16. Branching is inhibited by ..... from the tip of a growing shoot, but this effect is encountered by ..... from the root. A) Cytokinin, auxin. B) Auxin, Cytokinin. C) GA, Cytokinin. D) GA, ABA. Show Answer Correct Answer: B) Auxin, Cytokinin. 17. The process of moving synthesized and absorbed food and nutrients within the plant is: A) Photosynthesis. B) Respiration. C) Reproduction. D) Translocation. Show Answer Correct Answer: D) Translocation. 18. What grows on the plant after the flowers bloom? A) More leaves. B) A fruit. C) A new seed. D) A bigger stem. Show Answer Correct Answer: B) A fruit. 19. A colorless, odorless gas produced by burning carbon and organic compounds and by respiration; it is naturally present in air and is absorbed by plants in photosynthesis A) Oxygen. B) Nitrogen. C) Carbon Dioxide. D) Methane. Show Answer Correct Answer: C) Carbon Dioxide. 20. Which of the following is a characteristic of geometric growth? A) Occurs in all plants. B) Linear increase. C) Slow initial growth. D) Constant growth rate. Show Answer Correct Answer: C) Slow initial growth. 21. Hormon yang berperan dalam merangsang pembelahan sel pada tanaman adalah ..... A) Auxin. B) Gibberellin. C) Sitokinin. D) Etilen. Show Answer Correct Answer: C) Sitokinin. 22. Which is NOT part of a seed? A) Seed coat. B) Embryo. C) Pollen. D) Food store. Show Answer Correct Answer: C) Pollen. 23. Differentiation in plant is open because cells / tissues arising out of the same meristem- A) Have same structure at maturity. B) Have different structures at maturity. C) Have capacity to disappear their cell walls. D) Have same fate. Show Answer Correct Answer: B) Have different structures at maturity. 24. Root hydrotropism is stronger than root geotropism. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. Cytokinin helps in delay of leaf senescene by- A) Increasing more water absorption by root. B) Increasing rate of translocation of organic solutes. C) Promoting nutrients mobilization. D) Formation of adventitious buds. Show Answer Correct Answer: C) Promoting nutrients mobilization. ← 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 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 10Class 11 Biology Chapter 15 Plant Growth And Development Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books