This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 15 Plant Growth And Development – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 15 Plant Growth And Development Quiz 4 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which GA was the first Giberrellin to be discovered? A) GA$_{1}$. B) GA$_{2}$. C) GA$_{3}$. D) GA$_{4}$. Show Answer Correct Answer: C) GA$_{3}$. 2. Which one includes growth promoters? A) Auxin, Cytokinin, ABA. B) GA, Cytokinin, C$_{2}$H$_{4}$. C) C$_{2}$H$_{4}$, ABA. D) Auxin, Cytokinin, GA. Show Answer Correct Answer: D) Auxin, Cytokinin, GA. 3. A substance through which a plant's roots grow and extract water and nutrients. A) Cotyledons. B) Growing medium. C) Root apical meristem. D) Cambium. Show Answer Correct Answer: B) Growing medium. 4. Which of the following plant hormones can cause the base of a shoot to form new root, prevents fruit and leaf drop at early stage, to be used as herbicide / weedicide, also controls xylem differentiation and helps in cell division- A) GA. B) Cytokinin. C) Auxin. D) ABA. Show Answer Correct Answer: C) Auxin. 5. What pigment is responsible for trapping light energy from the sun? A) Carotene. B) Anthocyanin. C) Xanthophyll. D) Chlorophyll. Show Answer Correct Answer: D) Chlorophyll. 6. Grow rapidly at first, then slow, then stop A) Indeterminate growth. B) Determinate growth. C) Regular growth. D) Irregular growth. Show Answer Correct Answer: B) Determinate growth. 7. Growth promoting substance that contribute elongation of the shoots A) Auxiin. B) Auxin. C) Auxxin. D) Auxien. Show Answer Correct Answer: B) Auxin. 8. The part of the embryo that will develop into leaves is ..... A) Radikula. B) Kotiledon. C) Plumula. D) Epikotil. Show Answer Correct Answer: C) Plumula. 9. A pigment in plant cells that causes them to be green. A) Chlorophyll. B) Photosynthesis. C) Xylem. D) Cytokinin. Show Answer Correct Answer: A) Chlorophyll. 10. Vascular plants that have no woody stems. A) Hybrids. B) Annuals. C) Perennials. D) Herbaceous. Show Answer Correct Answer: D) Herbaceous. 11. What is a hormone that helps fruit ripen? A) Gibberelins. B) Etiolation. C) Tropism. D) Ethylene. Show Answer Correct Answer: D) Ethylene. 12. What animals visit flowers for sweet nectar? A) Birds and cats. B) Dogs and fish. C) Bees and butterflies. D) Spiders and ants. Show Answer Correct Answer: C) Bees and butterflies. 13. Where are stomata typically found? A) In the roots. B) In the stem. C) In the soil. D) In the leaves. Show Answer Correct Answer: D) In the leaves. 14. The thickening of trunks of trees is due to A) Non-meristemic tissue. B) The vascular cambium. C) The solar cambium. D) Lack of cambium. Show Answer Correct Answer: B) The vascular cambium. 15. The external factors that affect plant growth and development are ..... A) Temperature, Light, Gene. B) Light, Auxin, Water. C) Water, Light, pH. D) PH, Oxygen, Kalsium. Show Answer Correct Answer: C) Water, Light, pH. 16. Which amongst the following is a natural auxin? A) 2, 4-D. B) IAA. C) NAA. D) GA3. Show Answer Correct Answer: B) IAA. 17. A green photosynthetic pigment found in plants, algae, and cyanobacteria. Absorbs mostly in the blue and red electromagnetic spectrum hence its green color. A) Photo synthesis. B) Chlorophyll. C) Respiration. D) Transpiration. Show Answer Correct Answer: B) Chlorophyll. 18. Which of the following hormones causes fruits like apple to elongate and improve its shape- A) GA. B) ABA. C) NAA. D) 2, 4 D. Show Answer Correct Answer: A) GA. 19. The meaning of plant development is ..... A) The process of increasing body size. B) The process of multiplying body cells. C) The process of increasing maturity. D) Height increase process. E) Weight gain process. Show Answer Correct Answer: C) The process of increasing maturity. 20. What is the chemical process by which sugars and starches are converted to energy in plants? A) Transpiration. B) Photosynthesis. C) Oxidation. D) Respiration. Show Answer Correct Answer: D) Respiration. 21. Dina menanam sebuah biji di dalam pot yang berisi tanah. Beberapa hari kemudian, Dina melihat biji tersebut tumbuh dengan keping biji yang terangkat ke atas permukaan tanah. Tipe perkecambahan pada biji yang Dina tanam adalah ..... A) Epigeal. B) Hipogeal. C) Hipokotil. D) Epikotil. E) Kotiledon. Show Answer Correct Answer: A) Epigeal. 22. Lack of ..... result in chlorosis or yellowing of leaves A) Chloropel. B) Clorophyll. C) Chlorophyll. D) Chlorophyl. Show Answer Correct Answer: C) Chlorophyll. 23. A stress response where plants may experience severe stress that could lead to death. A) Susceptible. B) Tolerant. C) Resistant. D) Avoidance. Show Answer Correct Answer: A) Susceptible. 24. Plant tissues responsible for growth is the ..... A) Vascular tissue. B) Meristematic tissue. C) Epidermal tissue. D) Ground tissue. Show Answer Correct Answer: B) Meristematic tissue. 25. Callus is- A) Ethylene derivative. B) Auxin derivative. C) Gibberellin derivative. D) None of these. Show Answer Correct Answer: D) None of these. ← 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 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 10Class 11 Biology Chapter 15 Plant Growth And Development Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books