This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 15 Plant Growth And Development – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 15 Plant Growth And Development Quiz 12 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A hormone manufactured primarily in the shoot tips, in embryos, and in parts of developing flowers and seeds. A) Auxin. B) Cytokinin. C) Gibberellins. D) Ethylene. Show Answer Correct Answer: A) Auxin. 2. Apa yang terjadi jika tanaman kekurangan hormon auksin? A) Pertumbuhan akar terhambat. B) Pembentukan buah menjadi lebih cepat. C) Daun tanaman menjadi lebih lebar. D) Batang tanaman menjadi lebih tebal. Show Answer Correct Answer: A) Pertumbuhan akar terhambat. 3. What is the role of auxin in plants? A) Bud dormancy. B) Inhibition of abscission. C) Seed dormancy. D) Fruit ripening. Show Answer Correct Answer: B) Inhibition of abscission. 4. Vernalization A) Help in shortening the period between germination and flowering. B) Is useless for monocots. C) Is high temperature treatment to some annual crops. D) More than one option is correct. Show Answer Correct Answer: A) Help in shortening the period between germination and flowering. 5. What happens to seeds when conditions are not right for plant growth? A) They germinate immediately. B) They go dormant. C) They absorb more nutrients. D) They grow faster. Show Answer Correct Answer: B) They go dormant. 6. ..... is the very important material used as fuel and in many field including construction. A) Three. B) Wood. C) Fire wood. D) Vines. Show Answer Correct Answer: B) Wood. 7. The series of biochemical reactions in photosynthesis that require light energy that is captured by light-absorbing pigments (such as chlorophyll) to be converted into chemical energy. A) Light-dependent reactions. B) Carbon fixing reactions. C) Photoelectric effect. D) Photons. Show Answer Correct Answer: A) Light-dependent reactions. 8. What is the first stage of germination? A) Seed. B) Mature plant. C) Seedling. D) Seed pod. Show Answer Correct Answer: A) Seed. 9. Go through the following statements-I. Promotes flowering in pineappleII. Used to prepare weed free lawnIII. Promotes the abscission of older mature leaves and fruitsThe above functions are carried out by- A) GA. B) C$_{2}$H$_{4}$. C) ABA. D) Auxin. Show Answer Correct Answer: D) Auxin. 10. What is the primary product of photosynthesis? A) Carbon Dioxide. B) Starch. C) Glucose. D) Oxygen. Show Answer Correct Answer: C) Glucose. 11. Outer layer that protect embryo A) Tegmen. B) Testa. C) Radicle. D) Plumule. Show Answer Correct Answer: B) Testa. 12. A farmer grows cucumber plants in his field. He wants to increase the number of female flowers in them. Which plant growth regulator can be applied to achieve this? A) ABA. B) Ethylene. C) GA. D) Cytokinins. Show Answer Correct Answer: B) Ethylene. 13. How much water do tall plants need? A) 50-100 ml. B) 100-200 ml. C) 300-500 ml. D) 700-1000 ml. Show Answer Correct Answer: C) 300-500 ml. 14. How long can plants grow without soil? A) Forever. B) Not at all. C) For a short while with water and sunlight. D) Only during spring. Show Answer Correct Answer: C) For a short while with water and sunlight. 15. Which phase of growth involves cell enlargement? A) Phase of Maturation. B) Phase of Enlargement. C) Formative Phase. D) Differentiation Phase. Show Answer Correct Answer: B) Phase of Enlargement. 16. The cotyledon in seeds functions as ..... A) Photosynthesis place. B) Food storage. C) Germination place. D) Embryo protector. Show Answer Correct Answer: B) Food storage. 17. Attracts pollinators to the plant and aids in reproduction of the plant A) Leaf. B) Stem. C) Flower. D) Root. Show Answer Correct Answer: C) Flower. 18. What is a very young plant called? A) A tree. B) A bush. C) A seedling. D) A flower. Show Answer Correct Answer: C) A seedling. 19. The hormone responsible for phototropism is- A) Auxin. B) C2H4. C) ABA. D) GA. Show Answer Correct Answer: A) Auxin. 20. Which hormone delays leaf aging? A) Cytokinin. B) Ethylene. C) Abscisic acid. D) Gibberellin. Show Answer Correct Answer: A) Cytokinin. 21. Consider as the mature or ripened ovary A) Fruit. B) Flower. C) Seed. D) Zygote. Show Answer Correct Answer: A) Fruit. 22. Xylem+ Ploem =? A) Vascular system. B) Ploem. C) Xylem. D) Active transport. Show Answer Correct Answer: A) Vascular system. 23. Which structure protects the seed? A) Root. B) Cotyledon. C) Stem. D) Seed coat. Show Answer Correct Answer: D) Seed coat. 24. The joining of male sperm and female egg is called: A) Germination. B) Pollination. C) Fertilization. D) Plant growth. Show Answer Correct Answer: C) Fertilization. 25. The process of plant growth originates from the part found in the seed, namely ..... A) Plumula. B) Embrio. C) Radikula. D) Kotiledon. Show Answer Correct Answer: B) Embrio. ← 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