Mineral nutrition - macro and micronutrients, deficiency symptoms, nitrogen metabolism - Question Bank
1. Which element is a component of the enzyme superoxide dismutase and plays a role in protecting cells from oxidative damage?
2. A deficiency in Sulfur (S) can cause symptoms similar to those of:
3. Which element is a component of the enzyme aconitase and is involved in the Krebs cycle?
4. The deficiency of Chlorine (Cl-) can lead to:
5. Plants absorb Nitrogen primarily as:
6. Which enzyme is responsible for the assimilation of ammonia into organic compounds, forming glutamine?
7. Which of the following is a source of atmospheric nitrogen that plants can directly utilize?
8. The deficiency symptom of 'marsh spot' in peas is associated with a lack of:
9. Which element is a component of ferredoxin and cytochromes, involved in electron transport?
10. A deficiency in Boron (B) can lead to impaired:
11. Which of the following is a macronutrient that plays a role in energy transfer (ATP synthesis) and nucleic acid formation?
12. The conversion of nitrite (NO2-) to nitrate (NO3-) is carried out by the enzyme:
13. Deficiency of Calcium (Ca) often manifests as poor development of:
14. Which micronutrient is essential for the activity of carboxylase and superoxide dismutase enzymes?
15. The process by which soil microorganisms convert organic nitrogen into ammonium ions is called:
16. Which element is involved in osmoregulation and maintaining cell turgor?
17. Stunted growth and delayed flowering are common symptoms of deficiency in:
18. Which of the following is a function of Copper (Cu) in plants?
19. Interveinal chlorosis in young leaves is a classic symptom of deficiency in:
20. Which element is involved in the synthesis of essential amino acids like cysteine and methionine?
21. The conversion of ammonia to glutamine, a key step in nitrogen assimilation, is catalyzed by the enzyme:
22. Which micronutrient is required for the synthesis of auxin?
23. A deficiency of Phosphorus (P) can lead to anthocyanin accumulation, resulting in:
24. Which of the following is NOT a primary role of Potassium (K) in plants?
25. Plants absorb most mineral nutrients from the soil in the form of:
26. The 'whip-tail' effect, characterized by malformed or absent leaves, is a deficiency symptom of:
27. Which element is a component of plastocyanin and is involved in electron transport during photosynthesis?
28. A deficiency in Magnesium (Mg) directly impacts which process?
29. Which of the following is a micronutrient?
30. Essential elements that are required in relatively larger amounts for plant growth are called:
31. Which enzyme is involved in the reduction of nitrate to nitrite during nitrogen assimilation?
32. The process of converting atmospheric nitrogen (N2) into ammonia (NH3) is called:
33. Which element is essential for the formation of the middle lamella in plant cell walls?
34. A deficiency of Manganese (Mn) can cause:
35. Which mineral nutrient is crucial for maintaining turgor pressure in plant cells and opening/closing of stomata?
36. The enzyme nitrogenase, responsible for biological nitrogen fixation, contains which micronutrient as a cofactor?
37. A deficiency in Iron (Fe) leads to chlorosis, where the interveinal areas turn yellow, while the veins remain green. This phenomenon is known as:
38. Which of the following is NOT considered an essential element for plant growth?
39. Sulfur (S) is a component of which important organic molecules in plants?
40. The 'little leaf' or 'rosette' symptom is characteristic of a deficiency in:
41. Which element is involved in the photolysis of water during photosynthesis?
42. Wilting in plants, even in moist soil, can be a symptom of a deficiency in:
43. Which micronutrient plays a crucial role in nitrogen metabolism and is a component of nitrate reductase and nitrogenase enzymes?
44. A deficiency of Phosphorus (P) in plants typically leads to:
45. Nitrogen is a constituent of:
46. Which of the following is a function of Boron (B) in plants?
47. Necrosis, the death of plant tissue, is often a symptom of deficiency in which nutrient?
48. Which micronutrient is essential for the synthesis of chlorophyll and is also involved in enzyme activation?
49. Chlorosis, a yellowing of leaves, is a common deficiency symptom associated with which mineral nutrient?
50. Potassium (K+) is absorbed by plants primarily through: