This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 12 Mineral Nutrition – Quiz 4 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 12 Mineral Nutrition Quiz 4 (41 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which color of light is most rapid in photosynthesis? A) Blue. B) Yellow. C) Red. D) Green. Show Answer Correct Answer: C) Red. 2. Which nutrient is essential for the activation of enzymes in respiration? A) Zinc. B) Manganese. C) Copper. D) Potassium. Show Answer Correct Answer: D) Potassium. 3. How does water find it's way through the soil to the roots A) Hoses. B) Pore Spaces. C) Rocks. D) Sand. Show Answer Correct Answer: B) Pore Spaces. 4. Which nutrient is involved in the synthesis of DNA and RNA? A) Iron. B) Sulfur. C) Calcium. D) Magnesium. Show Answer Correct Answer: D) Magnesium. 5. Which of the following is a component of vitamin (thiamine, biotin), Acetyl CoA, cysteine, methionine and ferrerdoxin? A) Fe. B) Co. C) S. D) K. Show Answer Correct Answer: C) S. 6. Which factor affects the rate of reaction in photosynthesis by absorbing light energy? A) Chlorophyll. B) Water. C) Oxygen. D) Carbon Dioxide. Show Answer Correct Answer: A) Chlorophyll. 7. What is the primary role of Boron in plants? A) Root development. B) Nutrient transport. C) Photosynthesis. D) Cell elongation. Show Answer Correct Answer: D) Cell elongation. 8. Mineral known to be required in large amounts for plant growth include: A) Calcium, magnesium, manganese, copper. B) Potassium, phosphorus, selenium, boron. C) Magnesium, sulphur, iron, zinc. D) Phosphorus, potassium, sulphur, calcium. Show Answer Correct Answer: D) Phosphorus, potassium, sulphur, calcium. 9. What is the process called when plants absorb minerals through their leaves? A) Passive transport. B) Active transport. C) Root uptake. D) Foliar application. Show Answer Correct Answer: D) Foliar application. 10. Leguminous plants are able to fix atmospheric nitrogen through the process of symbiotic nitrogen fixation. Which one of the following statements is not correct during this process of nitrogen fixation? A) Leghaemoglobin scavenges oxygen and it is pinkish in colour. B) Nodules act as sites for nitrogen fixation. C) The enzyme nitrogenase catalyses the conversion of atmospheric N2 to NH3 . D) Nitrogenase is insensitive to oxygen. Show Answer Correct Answer: D) Nitrogenase is insensitive to oxygen. 11. Glycolysis does not require oxygen. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. Which element is very essential for uptake and utilization of Ca+2, membrane function, pollen germination and carbohydrate translocation via phloem- A) Cl. B) Mn. C) Mg. D) B. Show Answer Correct Answer: D) B. 13. What is the conclusion of Experiment IV:Showing that Chlorophyll is Necessary for Photosynthesis? A) Chlorophyll is necessary for fermentation. B) Chlorophyll is necessary for respiration. C) Chlorophyll is not necessary for photosynthesis. D) Starch is made only in areas of the leaf with chlorophyll. Show Answer Correct Answer: D) Starch is made only in areas of the leaf with chlorophyll. 14. Boron in green plants assists in A) Photosynthesis. B) Activation of enzymes. C) Acting as enzyme cofactor. D) Sugar transport. Show Answer Correct Answer: D) Sugar transport. 15. What is the main function of plasma membrane transporters in plants? A) Root anchoring. B) Water absorption. C) Selective uptake of nutrients and ions. D) Photosynthesis. Show Answer Correct Answer: C) Selective uptake of nutrients and ions. 16. Which nutrient is crucial for the formation of protein structures? A) Zinc. B) Sulfur. C) Calcium. D) Iron. Show Answer Correct Answer: B) Sulfur. 17. Partial mineral element is- A) Fe. B) P. C) K. D) N. Show Answer Correct Answer: D) N. 18. Plants with zinc deficiency show reduced biosynthesis of A) Cytokinin. B) Abscisic acid. C) Ethylene. D) Auxin. Show Answer Correct Answer: D) Auxin. 19. The prominent symptom of ..... toxicity is the appearance of brown spots surrounded by chlorotic veins. A) Zinc. B) Sulphur. C) Manganese. D) Magnesium. Show Answer Correct Answer: C) Manganese. 20. When a plant loses excessive water, the first response is A) Increasing water absorption. B) Reducing photosynthesis. C) Closing stomata. D) Opening stomata. Show Answer Correct Answer: C) Closing stomata. 21. Copper is activator in enzyme A) Tryptophanase. B) Carbonic anhydrase. C) Lactic dehydrogenase. D) Tyrosinase. Show Answer Correct Answer: D) Tyrosinase. 22. What is the effect of extreme soil pH on plants? A) Increased growth. B) Enhanced photosynthesis. C) Nutrient deficiencies or toxicities. D) Improved root structure. Show Answer Correct Answer: C) Nutrient deficiencies or toxicities. 23. Plants response to minerals/nutrients A) Hydrotropism. B) Chemotropism. C) Thigmotropism. D) Gravitropism. Show Answer Correct Answer: B) Chemotropism. 24. Most of the ATP created during cellular respiration is created during the ..... phase. A) Krebs cycle. B) Electron transport chain. C) Glycolysis. D) None of the answers are correct. Show Answer Correct Answer: B) Electron transport chain. 25. Which one of the following is not a micronutrient? A) Molybdenum. B) Boron. C) Magnesium. D) Zinc. Show Answer Correct Answer: C) Magnesium. 26. Element required for biological nitrogen fixation is A) Molybdenum. B) Copper. C) Zinc. D) Manganese. Show Answer Correct Answer: A) Molybdenum. 27. Which of the following choices is not one of the three plant macronutrients included in most fertilizers? A) K. B) O. C) N. D) P. Show Answer Correct Answer: B) O. 28. Which of the following is an immobile essential element? A) Nitrogen. B) Calcium. C) Iron. D) Phosphorus. Show Answer Correct Answer: C) Iron. 29. The element, which function as nucleus of chlorophyll molecule is ..... A) Nitrogen. B) Calcium. C) Sulphur. D) Magnesium. Show Answer Correct Answer: D) Magnesium. 30. What are the two main categories of nutrients required by plants? A) Organic and inorganic. B) Macronutrients and micronutrients. C) Primary and secondary. D) Essential and non-essential. Show Answer Correct Answer: B) Macronutrients and micronutrients. 31. Which nutrient is involved in the activation of enzymes in the Krebs cycle? A) Manganese. B) Zinc. C) Copper. D) Iron. Show Answer Correct Answer: A) Manganese. 32. The elements, without which, the plants will not be able to complete its life cycle are called ..... A) Essential elements. B) Fertilizers. C) Macro elements. D) Microelements. Show Answer Correct Answer: A) Essential elements. 33. Which nutrient deficiency causes chlorosis in older leaves? A) Calcium. B) Nitrogen. C) Potassium. D) Phosphorus. Show Answer Correct Answer: B) Nitrogen. 34. Azolla (duckweed fern) is often cultivated in rice fields because its roots contain ..... (1) ..... bacteria that help fix ..... (2) ..... and supply it to plants. A) Nodule; (2) Oxygen. B) Cyanobacteria; (2) Nitrogen. C) Cyanobacteria; (2) Oxygen. D) Nodule; (2) Nitrogen. Show Answer Correct Answer: B) Cyanobacteria; (2) Nitrogen. 35. Active mineral absorption means ions move from the soil into the root ..... (1) ..... the concentration gradient, ..... (2) ..... ATP energy. A) Against; (2) Using ATP. B) Against; (2) Without energy. C) Along; (2) Without energy. D) Along; (2) With energy. Show Answer Correct Answer: A) Against; (2) Using ATP. 36. Positive response for gravitropism would be ..... A) Plant to look sad. B) Plant to grow away from earth. C) Plant to grow straight up. D) Plant to grow towards earth. Show Answer Correct Answer: D) Plant to grow towards earth. 37. Which one of the following is not an essential mineral element for plants while the remaining three are? A) Phosphorus. B) Manganese. C) Iron. D) Cadmium. Show Answer Correct Answer: D) Cadmium. 38. Mineral nutrients are absorbed by the plants in the form of ..... A) Atoms. B) Molecules. C) Compounds. D) Ions. Show Answer Correct Answer: D) Ions. 39. Calcium is a component of ..... A) Primary cell wall. B) Secondary cell wall. C) Plasma membrane. D) Middle lamellae. Show Answer Correct Answer: D) Middle lamellae. 40. Deficiency symptoms of nitrogen & poatassium are visible first in A) Young leaves. B) Roots. C) Buds. D) Senescent leaves. Show Answer Correct Answer: D) Senescent leaves. 41. Magnesium is component of A) Florigen. B) Haemoglobin. C) Chlorophyll. D) Enzymes. Show Answer Correct Answer: C) Chlorophyll. ← PreviousRelated QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 12 Mineral Nutrition Quiz 1Class 11 Biology Chapter 12 Mineral Nutrition Quiz 2Class 11 Biology Chapter 12 Mineral Nutrition Quiz 3Class 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