#1. Passive absorption of minerals depend on
#2. Which one of the following is a micronutrient for plants?
#3. Which ofthe following is a free living aerobic nonphotosynthetic nitrogen-fixer?
#4. Minerals known to be required in large amounts for plant growth include:
#5. Enzyme involved in nitrogen assimilation
#6. Identify a micronutrient for plants amongst the following:
#7. A free living nitrogen-fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is
#8. In which of the following all three are macronutrients?
#9. The deficiencies of micronutrients, not only affects growth of plants but also vital functions such as photosynthetic and mitochondrial electron flow. Among the list given below, which group of three elements shall affect most, both photosynthetic and mitochondrial electron transport:
#10. Which one of the following produces nitrogen fixing nodules on the roots of Alnus?
#11. Grey spots of oat are caused by deficiency of
#12. Deficiency symptoms of nitrogen and potassium are visible first in:
#13. In which of the following forms is iron absorbed by plants?
#14. A pair of insectivorous plants is
#15. Which of the following can fix atmospheric nitrogen?
#16. Mycorrhiza is a symbiotic relationship between roots of higher plants and
#17. Which one oft he following is not an essential element for plants ?
#18. Which aquatic fern performs nitrogen fixation?
#19. A plant requires magnesium for
#20. Which is essential for the growth of root tip?
#21. Which one of the following mineral elements plays an important role in biological nitrogen fixation ?
#22. Which one gives the most valid and recent explanation for stomatal movements?
#23. The product(s) of reaction catalyzed by nitrogenase in root nodules of leguminous plant is / are.
#24. The major role of minor elements inside living organisms is to act as
#25. Which of the following elements is responsible for maintaining turgor in cells?
#26. A thiobacillus is a group of bacteria helpful in carrying out
#27. Which of the following bacteria reduce nitrate in soil into nitrogen?
#28. The major portion of the dry weight of plants comprises of
#29. Which ofthe following is not caused by deficiency of mineral nutrition?
#30. Boron in green plants assists in
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