Mineral nutrition - macro and micronutrients, deficiency symptoms, nitrogen metabolism - One Line Questions

1. Which of the following is a function of Copper (Cu) in plants? — Activation of enzymes involved in photosynthesis and respiration
2. Potassium (K+) is absorbed by plants primarily through: — Active transport
3. Which of the following is NOT a primary role of Potassium (K) in plants? — Protein synthesis
4. The 'whip-tail' effect, characterized by malformed or absent leaves, is a deficiency symptom of: — Molybdenum
5. Necrosis, the death of plant tissue, is often a symptom of deficiency in which nutrient? — Calcium
6. Wilting in plants, even in moist soil, can be a symptom of a deficiency in: — Calcium
7. Which mineral nutrient is crucial for maintaining turgor pressure in plant cells and opening/closing of stomata? — Potassium
8. Stunted growth and delayed flowering are common symptoms of deficiency in: — Phosphorus
9. Which element is involved in osmoregulation and maintaining cell turgor? — Potassium
10. Nitrogen is a constituent of: — Proteins and nucleic acids
11. A deficiency in Magnesium (Mg) directly impacts which process? — Photosynthesis
12. Which micronutrient plays a crucial role in nitrogen metabolism and is a component of nitrate reductase and nitrogenase enzymes? — Molybdenum
13. Which of the following is a function of Boron (B) in plants? — Cell wall synthesis and membrane function
14. Which enzyme is responsible for the assimilation of ammonia into organic compounds, forming glutamine? — Glutamine synthetase
15. A deficiency in Iron (Fe) leads to chlorosis, where the interveinal areas turn yellow, while the veins remain green. This phenomenon is known as: — Interveinal chlorosis
16. Which micronutrient is essential for the synthesis of chlorophyll and is also involved in enzyme activation? — Magnesium
17. The 'little leaf' or 'rosette' symptom is characteristic of a deficiency in: — Zinc
18. Which element is a component of plastocyanin and is involved in electron transport during photosynthesis? — Copper
19. Which element is a component of the enzyme aconitase and is involved in the Krebs cycle? — Iron
20. Which element is essential for the formation of the middle lamella in plant cell walls? — Calcium
21. Which element is involved in the photolysis of water during photosynthesis? — Manganese
22. Which micronutrient is required for the synthesis of auxin? — Zinc
23. Interveinal chlorosis in young leaves is a classic symptom of deficiency in: — Iron
24. Which micronutrient is essential for the activity of carboxylase and superoxide dismutase enzymes? — Zinc
25. Which element is a component of ferredoxin and cytochromes, involved in electron transport? — Iron
26. The deficiency symptom of 'marsh spot' in peas is associated with a lack of: — Manganese
27. Essential elements that are required in relatively larger amounts for plant growth are called: — Macronutrients
28. Which of the following is considered a macronutrient essential for plant growth? — Phosphorus
29. The enzyme nitrogenase, responsible for biological nitrogen fixation, contains which micronutrient as a cofactor? — Molybdenum
30. Which of the following is a source of atmospheric nitrogen that plants can directly utilize? — Nitrate (NO3-)
31. Plants absorb Nitrogen primarily as: — Ammonium ions (NH4+) and nitrate ions (NO3-)
32. The conversion of ammonia to glutamine, a key step in nitrogen assimilation, is catalyzed by the enzyme: — Glutamine synthetase
33. The conversion of nitrite (NO2-) to nitrate (NO3-) is carried out by the enzyme: — Nitrite reductase
34. The process of converting atmospheric nitrogen (N2) into ammonia (NH3) is called: — Nitrogen fixation
35. The process by which soil microorganisms convert organic nitrogen into ammonium ions is called: — Ammonification
36. Which element is a component of all organic compounds and is the most abundant element in plant cells by dry weight? — Carbon
37. Which of the following is a micronutrient? — Zinc
38. Which element is involved in the synthesis of essential amino acids like cysteine and methionine? — Sulfur
39. A deficiency in Sulfur (S) can cause symptoms similar to those of: — Nitrogen deficiency
40. Which enzyme is involved in the reduction of nitrate to nitrite during nitrogen assimilation? — Nitrate reductase
41. A deficiency in Boron (B) can lead to impaired: — Pollen germination and tube growth
42. Chlorosis, a yellowing of leaves, is a common deficiency symptom associated with which mineral nutrient? — Magnesium
43. Which of the following is NOT considered an essential element for plant growth? — Sodium
44. Deficiency of Calcium (Ca) often manifests as poor development of: — Roots and shoots
45. A deficiency of Manganese (Mn) can cause: — Yellowing of young leaves
46. Plants absorb most mineral nutrients from the soil in the form of: — Dissolved ions
47. Sulfur (S) is a component of which important organic molecules in plants? — Amino acids (like cysteine and methionine) and vitamins
48. A deficiency of Phosphorus (P) in plants typically leads to: —
49. Which of the following is a macronutrient that plays a role in energy transfer (ATP synthesis) and nucleic acid formation? — Phosphorus
50. The deficiency of Chlorine (Cl-) can lead to: — Wilting of leaves
All One Line Questions
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