This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 14 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. For the discharge of both male gametes, pollen tube enter into embryosac through the A) Central cell. B) Chalaza. C) Antipodals. D) Degenerating cell of synergids. Show Answer Correct Answer: D) Degenerating cell of synergids. 2. Identify the albuminous seed from the following: A) Pea. B) Wheat. C) Ground nut. D) Bean. Show Answer Correct Answer: B) Wheat. 3. In some cereals such as rice and wheat, pollen grains lose viability within ..... of their release. A) 1 hour. B) 30 minutes. C) 30 seconds. D) 30 hours. Show Answer Correct Answer: B) 30 minutes. 4. In what way are flowers adapted to help angiosperms reproduce? A) The flowers store nutrients needed for the plant to grow. B) The Flowers are an important source for human food. C) The flowers help attract animals that are needed to deliver pollen. D) None of these are considerations for reproduction. Show Answer Correct Answer: C) The flowers help attract animals that are needed to deliver pollen. 5. Exine of pollen grain A) Is pectocellulosic. B) Exhibits a fascinating array of patterns and designs. C) Has micropyle. D) Is degraded by enzymes. Show Answer Correct Answer: B) Exhibits a fascinating array of patterns and designs. 6. Assertion:The pollens are preserved as fossil. Reason:Sporopollenin is the one of the most resistant organic material. A) If both Assertion and Reason are true and Reason is the correct explanation of Assertion. B) If both Assertion and Reason are true but Reason is not the correct explanation of Assertion. C) If Assertion is true but Reason is false. D) If both Assertion and Reason are false. Show Answer Correct Answer: A) If both Assertion and Reason are true and Reason is the correct explanation of Assertion. 7. Which of the following has proved helpful in preserving pollen as fossils A) Pollen kit. B) Cellulosic intine. C) Oil content. D) Sporopollenin. Show Answer Correct Answer: D) Sporopollenin. 8. Pollens are usually sticky and spiky so that they can ..... A) Stay on the pollinators' body without falling off easily. B) Prevent pollinators from eating them. C) All the above. D) None of the above. Show Answer Correct Answer: A) Stay on the pollinators' body without falling off easily. 9. Which of the following is NOT a pollinator of plants? A) Bees. B) Birds. C) The wind. D) A bear. E) Other insects. Show Answer Correct Answer: D) A bear. 10. Refer to the given characteristics of some flowers:(i) Light and non-sticky pollen g rains (ii) Exserted stigmas and anthers (Ill) Large, often feathery stigmas (iv) Flowers colourless, odourless and nectarless (v) Common in grasses Above features are the characteristics of A) Anemophily. B) Hydrophily. C) Entomophily. D) Zoophily. Show Answer Correct Answer: A) Anemophily. 11. In majority of angiosperms pollen grains are released in 2 celled stage, where in rest of the angiosperms pollen grains are released in A) 4 celled stage. B) 5 celled stage. C) 3 celled stage. D) None of these. Show Answer Correct Answer: C) 3 celled stage. 12. What is the purpose of seed dispersal? A) To increase seed size. B) To reduce competition for resources. C) To enhance seed color. D) To prevent germination. Show Answer Correct Answer: B) To reduce competition for resources. 13. Functional megaspore in a flowering plant develops into A) Endosperm. B) Ovule. C) Embryo-sac. D) Embryo. Show Answer Correct Answer: A) Endosperm. 14. Which of the following plant is monoecious? A) Papaya. B) Date Palm. C) Coconut. D) Both A and B. Show Answer Correct Answer: C) Coconut. 15. What does filiform apparatus do A) It guides pollen tube from the synergid to egg. B) It allows pollen tube to germinate. C) It prevents entry of pollen tube in to the synergids. D) All of the above. Show Answer Correct Answer: A) It guides pollen tube from the synergid to egg. 16. The term used for transfer of pollen grains from anthers of one plant to stigma of different plants which, during pollination, brings genetically different types of pollen grains to stigma is ; A) Cleistogamy. B) Chasmogamy. C) Xenogamy. D) Geitonogamy. Show Answer Correct Answer: C) Xenogamy. 17. Section C-True or False:Orchid seeds have no endosperm. Choose True or False. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 18. The stalk of anther is called: A) Filament. B) Connective. C) Placenta. D) Pedicel. Show Answer Correct Answer: A) Filament. 19. Which of these parts of a flower are NOT "female" parts? A) Pistil. B) Stamen. C) Stigma. D) Style. Show Answer Correct Answer: B) Stamen. 20. The filiform apparatus is present in A) Synergids. B) Egg cell. C) Antipodals. D) Secondary nucleus. Show Answer Correct Answer: A) Synergids. 21. In water hyacinth and water lily, pollination takes place by A) Water currents only. B) Wind and water. C) Insects and water. D) Insects or wind. Show Answer Correct Answer: D) Insects or wind. 22. Which of the following set of seeds represent all monocotyledon seeds? A) Maize, Pea, Gram. B) Pea, Gram, Mango. C) Maize, Rice, Wheat. D) Rice, Gram, Mango. Show Answer Correct Answer: C) Maize, Rice, Wheat. 23. Endosperm is completely consumed by the developing embryo in A) Pea and groundnut. B) Maize and castor. C) Castor and groundnut. D) Maize and pea. Show Answer Correct Answer: A) Pea and groundnut. 24. The male structures of the flower A) Pistil. B) Stamen. C) Pollination. D) Petals. Show Answer Correct Answer: B) Stamen. 25. Complete autogamy is present in A) Chasmogamous Flowers. B) Cleistogamous Flowers. C) All the above. D) None of the above. Show Answer Correct Answer: B) Cleistogamous Flowers. ← PreviousNext →Related QuizzesClass 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 1Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 2Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 3Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 4Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 5Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 6Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 7Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 8Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 9Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books