This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 15 Plant Growth And Development – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 15 Plant Growth And Development Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the function of the leaves in a plant? A) To support the plant. B) To store food. C) To absorb sunlight. D) To attract pollinators. Show Answer Correct Answer: C) To absorb sunlight. 2. The aleurone synthesises and secretes digestive enzymes that hydrolyse nutrients stored in the endosperm, in presence of A) Auxin. B) Gibberellin. C) Cytokinin. D) Ethylene. Show Answer Correct Answer: B) Gibberellin. 3. The process of plant's loss of water through stomata is called A) Photosynthesis. B) Transpiration. C) Respiration. D) Germination. Show Answer Correct Answer: B) Transpiration. 4. Which factor accelerates the growth of plants? A) Increase in temperature. B) Decrease in temperature. C) Decrease in light intensity. D) Increase in water scarcity. Show Answer Correct Answer: A) Increase in temperature. 5. Bees have a straw-like ..... A) Tongue. B) Leg. C) Antenna. D) None of the above. Show Answer Correct Answer: A) Tongue. 6. Bees help flowers by carrying ..... from flower to flower. A) Pollen. B) Nectar. C) Honey. D) None of the above. Show Answer Correct Answer: A) Pollen. 7. What is the process of water movement through a plant called? A) Fertilization. B) Respiration. C) Photosynthesis. D) Transpiration. Show Answer Correct Answer: D) Transpiration. 8. Growing plants in water without the use of soil. A) Hydroponics. B) Aquaponics. C) Aeroponics. D) Soil Cultivation. Show Answer Correct Answer: A) Hydroponics. 9. (i) Horizontal growth of seedlings, swelling of the axis and apical hook formation in dicot seedlings.(ii) Promoting senescence and abscission of leaves and flowers.(iii) Breaking seed and bud dormancy.(iv) Initiating germination in peanut seeds.(v) Sprouting of potato tubers. A) ABA. B) Ethylene. C) GA. D) Cytokinins. Show Answer Correct Answer: B) Ethylene. 10. A layer of tissue in plants that undergoes secondary growth and creates xylem and phloem. A) Vascular cambium. B) Cork cambium. C) Internode. D) Zone of elongation. Show Answer Correct Answer: A) Vascular cambium. 11. Apa proses biji berkecambah disebut? A) Perkecambahan. B) Pertumbuhan vegetatif. C) Pertumbuhan generatif. D) Pertumbuhan sekunder. Show Answer Correct Answer: A) Perkecambahan. 12. Allows seed to overcome periods that are unfavorable for seedlings established and is therefore important for plant ecology and agriculture. A) Bud dormancy. B) Endogenous. C) Exogenous. D) Seed dormancy. Show Answer Correct Answer: D) Seed dormancy. 13. What is one disadvantage of using organic fertilizers? A) They improve soil structure. B) They release nutrients slowly. C) They are non-toxic. D) They make the soil acidic. Show Answer Correct Answer: B) They release nutrients slowly. 14. Pressure inside a cell that pushes the cell membrane outward into the cell wall. This occurs when more water enters into the cell. A) Turgor. B) Monocarpic growth. C) Respiration. D) Photosynthesis. Show Answer Correct Answer: A) Turgor. 15. All plants grow from ..... A) Leaves. B) Seed. C) Root. D) Stem. Show Answer Correct Answer: B) Seed. 16. Chlorophyll pigments harvest energy ( protons ) by absorbing certain wavelengths A) ( blue-420 nm and red-660 nm are most important. B) Blue-430 red-670. C) Blue-440 red-680. D) Blue-450 red-690. Show Answer Correct Answer: A) ( blue-420 nm and red-660 nm are most important. 17. Natural cytokinins are synthesised in- A) Root apices. B) Developing shoot buds. C) Young fruits. D) All. Show Answer Correct Answer: D) All. 18. Which of the following is a short day plant? A) Radish. B) Wheat. C) Xanthium. D) Barley. Show Answer Correct Answer: C) Xanthium. 19. It is a process in which plant meristems become mostly inactive to withstand harsh environmental conditions A) Bud dormancy temperature. B) Basal plate. C) Cytokinins. D) Abscisic acid. Show Answer Correct Answer: A) Bud dormancy temperature. 20. This is a hormone that promotes cell division in roots and shoots. A) Abscisic acid. B) Auxin. C) Cytokinin. D) Ethylene. Show Answer Correct Answer: C) Cytokinin. 21. Which process is not directly affected by auxin? A) Apical dominance and root initiation. B) Parthenocarpy. C) Synthesis of $\alpha$. D) Leaf abscission. Show Answer Correct Answer: C) Synthesis of $\alpha$. 22. Which of the following are lateral meristems? A) Bundle sheaths. B) Axillary buds. C) Vascular cambium. D) Leaf primordia. Show Answer Correct Answer: C) Vascular cambium. 23. The green colors comes from the chlorophyll in the chloroplast, the pigments absorb ..... ? A) Light. B) Sun light. C) Light energy. D) Solar light. Show Answer Correct Answer: C) Light energy. 24. Which plant structure carries water and nutrients to leaves? A) Xylem. B) Stomata. C) Roots. D) Seeds. Show Answer Correct Answer: A) Xylem. 25. The Krebs cycle occurs in the A) Cytoplasm. B) Mitochondria. C) Chloroplast. D) Vacuole. Show Answer Correct Answer: B) Mitochondria. ← 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