This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 12 Mineral Nutrition – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 12 Mineral Nutrition Quiz 2 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Minerals associated with redox reaction are- A) Fe, Cu. B) N, Cu. C) Ca, Fe. D) Na, Cu. Show Answer Correct Answer: A) Fe, Cu. 2. I. Component of chlorophyllII. Helps to maintain ribosome structureIII. Activator for Rubisco and PepcoIV. Activates the enzymes of respiration and photosynthesisV. Involved in synthesis of nucleic acidsThe above roles are played by- A) Ca$^{+2}$. B) Mn$^{+2}$. C) Mg$^{+2}$. D) Cl$^{-}$. Show Answer Correct Answer: C) Mg$^{+2}$. 3. Passive mineral absorption occurs according to the principle of A) Endocytosis. B) Osmosis. C) Diffusion. D) Active transport. Show Answer Correct Answer: C) Diffusion. 4. Which one of the following is a wrong statement? A) Anabaena and Nostoc are capable of fixing nitrogen in free-living state also. B) Root nodule forming nitrogen fixers live as aerobes under free-living conditions. C) Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins. D) Nitrosomonas and Nitrobacter are chemoautotrophs. Show Answer Correct Answer: C) Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins. 5. Monovalent ion primarily responsible for opening and closing of stomata is A) NO3-. B) K+. C) SO4-. D) Na+. Show Answer Correct Answer: B) K+. 6. I. Helps in the formation of middle lamellaII. Needed in spindle fibre formationIII. Accumulates in older leavesIV. Involved in normal functioning of cell membrane V. Activates certain enzymes like succinate dehydrogenase.The above list is associated with- A) Mg. B) Fe. C) Cu. D) Ca. Show Answer Correct Answer: D) Ca. 7. Plants response to grow towards or away from gravity A) Thigmotropism. B) Gravitropism. C) Hydrotropism. D) Phototropism. Show Answer Correct Answer: B) Gravitropism. 8. What is the primary function of Nitrogen in plants? A) Promotes flowering. B) Constituent of chlorophyll. C) Cell wall synthesis. D) Root development. Show Answer Correct Answer: B) Constituent of chlorophyll. 9. Which of the following can fix nitrogen in nonleguminous plants? A) Rhizobium. B) Frankia. C) Rhodospirillum. D) Azotobacter. Show Answer Correct Answer: B) Frankia. 10. The first stable product of fixation of atmospheric nitrogen in leguminous plants is: A) NO$_{3}$$^{-}$. B) NO$_{2}$$^{-}$. C) Ammonia. D) Glutamate. Show Answer Correct Answer: C) Ammonia. 11. What are the three major factors affecting the rate of photosynthesis? A) Chlorophyll concentration, Protein formation, Lipid formation. B) Light intensity, Oxygen concentration, Temperature. C) Light intensity, Carbon dioxide concentration, Temperature. D) Carbon dioxide concentration, Water availability, Pollution. Show Answer Correct Answer: C) Light intensity, Carbon dioxide concentration, Temperature. 12. What is chlorosis in plants primarily caused by? A) Excess nitrogen. B) Waterlogging. C) Iron deficiency. D) High soil pH. Show Answer Correct Answer: C) Iron deficiency. 13. Minerals which maintain cation-anion balance in cells are- A) Cl and K. B) K and Fe. C) Cl and Mg. D) Ca and Mg. Show Answer Correct Answer: A) Cl and K. 14. What is the aim of Experiment I:Testing for Starch in a Leaf? A) To test a leaf for starch. B) To test a leaf for protein. C) To test a leaf for water content. D) To test a leaf for glucose. Show Answer Correct Answer: A) To test a leaf for starch. 15. What is the consequence of a deficiency in Manganese? A) Interveinal chlorosis. B) Yellowing of leaves. C) Necrosis at root tips. D) Stunted growth. Show Answer Correct Answer: A) Interveinal chlorosis. 16. Which mineral is required in larger amount in comparison to other micronutrients A) Mo. B) B. C) Fe. D) Zn. Show Answer Correct Answer: C) Fe. 17. The main component of phloem sap is A) Organic substances in the stem. B) Organic substances synthesized in the leaves. C) Inorganic substances from leaves. D) Organic substances in the roots. Show Answer Correct Answer: B) Organic substances synthesized in the leaves. 18. Plants response to light ..... A) Phototropism. B) Gravitropism. C) Hydrotropism. D) Chemotropism. Show Answer Correct Answer: A) Phototropism. 19. What is the process called when plants absorb mineral ions against their concentration gradient? A) Osmosis. B) Passive absorption. C) Diffusion. D) Active absorption. Show Answer Correct Answer: D) Active absorption. 20. Plants response to touch is called? A) Hydrotropism. B) Phototropism. C) Chemotropism. D) Thigmotropism. Show Answer Correct Answer: D) Thigmotropism. 21. What is the effect of lack of chlorophyll on photosynthesis? A) Stops photosynthesis completely. B) Has no effect on photosynthesis. C) Results in chlorosis or yellowing of leaves. D) Increases the rate of photosynthesis. Show Answer Correct Answer: C) Results in chlorosis or yellowing of leaves. 22. Hydrophonics is a system of growing plants in- A) Soilless culture with acidic pH. B) Acidic soil. C) Soilless culture or solution cultures. D) Soilless cultures with alkaline pH. Show Answer Correct Answer: C) Soilless culture or solution cultures. 23. Which of the following elements are required for chlorophyll synthesis- A) Fe and Mg. B) Mo and Ca. C) Cu and Ca. D) Ca and K. Show Answer Correct Answer: A) Fe and Mg. 24. Which one of the following elements in plants is not remobilized? A) Sulphur. B) Calcium. C) Potassium. D) Phosphorus. Show Answer Correct Answer: B) Calcium. 25. Which adaptation of the leaf allows carbon dioxide to enter into the leaf? A) Impervious cuticle layer. B) Upper epidermis. C) Presence of stomata. D) Broad and flat lamina. Show Answer Correct Answer: C) Presence of stomata. 26. ..... is an important secondary nutrient. A) Magnesium. B) Phosphorus. C) Potassium. D) Nitrogen. Show Answer Correct Answer: A) Magnesium. 27. The free-living, anaerobic nitrogen-fixer is A) Beijerinckia. B) Rhizobium. C) Rhodospirillum. D) Azotobacter. Show Answer Correct Answer: C) Rhodospirillum. 28. Water can get to the xylem through the ..... pathway, which is considered active absorption. Water passes through one cell to the next through plasmodesmata. A) Apoplast. B) Symplast. C) Apoloplast. D) None of the answers are correct. Show Answer Correct Answer: B) Symplast. 29. What is the conclusion of Experiment II:Showing that Carbon Dioxide is Necessary for Photosynthesis? A) Light is necessary for photosynthesis. B) Carbon dioxide is necessary for photosynthesis. C) Oxygen is necessary for photosynthesis. D) Carbon dioxide is not necessary for photosynthesis. Show Answer Correct Answer: B) Carbon dioxide is necessary for photosynthesis. 30. What are hyperaccumulators? A) Plants that accumulate heavy metals. B) Plants that require high moisture. C) Plants that have low nutrient uptake. D) Plants that grow in acidic soils. Show Answer Correct Answer: A) Plants that accumulate heavy metals. 31. The element is said to be ..... when present below the critical concentration. A) Deficient. B) Excess. C) Toxic. D) None of the above. Show Answer Correct Answer: A) Deficient. 32. What is the effect of Potassium deficiency on leaves? A) Necrosis at leaf tips. B) Mottled chlorosis. C) Interveinal chlorosis. D) Black necrosis. Show Answer Correct Answer: B) Mottled chlorosis. 33. An immobile element in plants is A) Calcium. B) Potassium. C) Phosphorus. D) Nitrogen. Show Answer Correct Answer: A) Calcium. 34. Loss of chlorophyll leading to yellowing of leaves is known as A) Chlorosis. B) Necrosis. C) Florosis. D) Tylosis. Show Answer Correct Answer: A) Chlorosis. 35. Dried blood and fish meal are inorganic nitrogen fertilizers. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 36. Low level of ..... causes an inhibition of cell division. A) Nitrogen. B) Potassium. C) Sulphur. D) All the above. Show Answer Correct Answer: D) All the above. 37. What is the role of the stomata in photosynthesis? A) Absorbs sunlight for photosynthesis. B) Allows carbon dioxide to enter into the leaf. C) Prevents greenhouse effects. D) Allows water to reach the photosynthetic cells. Show Answer Correct Answer: B) Allows carbon dioxide to enter into the leaf. 38. Which of the following techniques can researchers use to explore plant nutrient deficiencies? A) Crop rotation. B) Hydrophonics. C) Hyperbaric chambers. D) Sun exposure. Show Answer Correct Answer: B) Hydrophonics. 39. A few normal seedlings of tomato were kept in a dark room. After a few days they were found to have become white-coloured like albinos. Which of the following terms will you use to describe them? A) Etiolated. B) Mutated. C) Embolised. D) Defoliated. Show Answer Correct Answer: A) Etiolated. 40. Nitrifying bacteria A) Reduce nitrates to free nitrogen. B) Convert free nitrogen to nitrogen compounds. C) Oxidize ammonia to nitrates. D) Convert proteins into ammonia. Show Answer Correct Answer: C) Oxidize ammonia to nitrates. 41. A mineral deficiency is likely to affect older leaves more than younger leaves if the- A) Deficiency persists for a long time. B) Mineral is very mobile within the plant. C) Older leaves are in direct contact of sunlight. D) Mineral is a micronutrient. Show Answer Correct Answer: B) Mineral is very mobile within the plant. 42. Why does a plant need nitrates from the soil? Choose the best answer. A) To make amino acids. B) For growth. C) To make glucose. D) Because it is a mineral. Show Answer Correct Answer: A) To make amino acids. 43. At physiological pH, the ammonia is protonated to form ..... A) N$_{2}$. B) NH$_{4}$$^{+}$. C) NH$_{2}$$^{-}$. D) NH$_{3}$. Show Answer Correct Answer: B) NH$_{4}$$^{+}$. 44. Which nutrient deficiency leads to necrosis at the tips of roots? A) Boron. B) Calcium. C) Iron. D) Zinc. Show Answer Correct Answer: B) Calcium. 45. The xylem of plants is composed of A) Tubular cells that are dead and lignified. B) Living, lignified cells. C) Living, non-lignified cells. D) Dead, non-lignified cells. Show Answer Correct Answer: A) Tubular cells that are dead and lignified. 46. About 98% of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and: A) Calcium and Phosphorus. B) Phosphorus and Sulphur. C) Sulphur and Magnesium. D) Magnesium and Sodium. Show Answer Correct Answer: A) Calcium and Phosphorus. 47. Every phase of cellular respiration requires oxygen. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 48. Which nutrient deficiency leads to the localized death of tissue in leaves? A) Abscission. B) Stunting. C) Necrosis. D) Chlorosis. Show Answer Correct Answer: C) Necrosis. 49. What effect does soil pH have on nutrient availability? A) Lower pH increases nutrient retention. B) Higher pH increases negative charges on soil particles. C) Lower pH increases cation exchange capacity. D) Higher pH increases nutrient leaching. Show Answer Correct Answer: B) Higher pH increases negative charges on soil particles. 50. Which one of the following is correctly matched? A) Apoplast-Plasmodesmata. B) Bakane of rice seedings-F Skoog. C) Passive transport of nutrients-ATP. D) Potassium-Readily immobilisation. Show Answer Correct Answer: D) Potassium-Readily immobilisation. 51. Excess of Mn causes deficiency of- A) Fe. B) Mg. C) Ca. D) All. Show Answer Correct Answer: D) All. 52. Concerning water and mineral absorption by roots, how many statements are correct?I. Transpiration creates a pulling force.II. Root metabolism increases osmotic pressure.III. Water is absorbed actively. IV. Mineral ions are absorbed actively and passively. A) 4. B) 3. C) 2. D) 1. Show Answer Correct Answer: B) 3. 53. Deficiency of which mineral causes deficiency of N- A) S. B) K. C) Mn. D) Mo. Show Answer Correct Answer: D) Mo. 54. What is the role of light intensity in photosynthesis? A) Increases the rate of photosynthesis linearly. B) Stops photosynthesis completely. C) Has no effect on photosynthesis. D) Decreases the rate of photosynthesis linearly. Show Answer Correct Answer: A) Increases the rate of photosynthesis linearly. 55. What is the consequence of a deficiency in Iron? A) Chlorosis in younger leaves. B) Stunted growth. C) Chlorosis in older leaves. D) Necrosis at root tips. Show Answer Correct Answer: A) Chlorosis in younger leaves. 56. What is the main consequence of a deficiency in Boron? A) Chlorosis in older leaves. B) Stunted growth. C) Black necrosis of young leaves. D) Necrosis at root tips. Show Answer Correct Answer: C) Black necrosis of young leaves. 57. What is the effect of Sulfur deficiency on young leaves? A) Necrosis. B) Stunted growth. C) Interveinal chlorosis. D) Chlorosis. Show Answer Correct Answer: D) Chlorosis. 58. What is the main function of Potassium in plants? A) Protein synthesis. B) Cell turgor. C) Nucleic acid synthesis. D) Chlorophyll formation. Show Answer Correct Answer: B) Cell turgor. 59. Which nutrient is involved in nitrate assimilation? A) Boron. B) Zinc. C) Copper. D) Molybdenum. Show Answer Correct Answer: D) Molybdenum. 60. The first experiment on hydrophonics was performed by- A) Sachs. B) Hoagland. C) Knop. D) Arnon. Show Answer Correct Answer: A) Sachs. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 12 Mineral Nutrition Quiz 1Class 11 Biology Chapter 12 Mineral Nutrition Quiz 3Class 11 Biology Chapter 12 Mineral Nutrition Quiz 4Class 11 Biology Chapter 1 The Living World QuizClass 11 Biology Chapter 10 Cell Cycle And Cell Division QuizClass 11 Biology Chapter 11 Transport In Plants QuizClass 11 Biology Chapter 13 Photosynthesis In Higher Plants QuizClass 11 Biology Chapter 14 Respiration In Plants Quiz 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books