#1. Which of the following elements in plants is not immobilized?
#2. Which of the following elements is a component of the middle lamella in plant cells?
#3. Plant requires magnesium for_________
#4. For its activity, nitrogenase requires________
#5. Molybdenum is essentially involved in plants metabolism in________
#6. In which of the following forms is iron absorbed by plants?
#7. The common nitrogen fixers in paddy fields is
#8. The first stable product of fixation of atmospheric nitrogen in leguminous plants is________
#9. Leghemoglobin________
#10. Minerals known to be required in large amounts for plant growth include________
#11. Which of the following is not caused by detficiency or mineral nutrition ?
#12. In root nodules of legumes, leghaemoglobin is important because_________
#13. During biological nitrogen fixation, inactivation nitrogenase by oxygen poisoning is prevented by_____
#14. Which one of the following is not an essential minerals element for plants while the remaining three are?
#15. Which of the following element is responsible for maintaining turgor in cells________
#16. An element playing important role in nitrogen fixation is_________
#17. The role of minerals in plant growth and metabolism was discovered by________
#18. In which of the following all three are macronutrients?
#19. Which one of the following is the incorrect statement?
#20. Sulphur is an important nutrient for optimum growth and productivity in__________
#21. About 98 per cent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and_______
#22. Mineral transport in plants_______
#23. Which of the following is not a micronutrient___________
#24. Deficiency symptom of nitrogen and potassium are visible first in_______
#25. Which one of the following elements is required for photosynthetic oxygen evolution?
#26. The function of leghaemoglobin in the root nodules of legumes is_______
#27. Which is essential for the growth of root tip
#28. Which one of the following elements is not an essential micronutrient for plant growth?
#29. Most abundant element present in plants is___________
#30. Internal cork of apple is caused due to deficiency of________
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