EDU FOR YOU - MINERAL NUTRITION PREVIOUS YEAR NEET QUESTIONS

 

MINERAL NUTRITION

PREVIOUS YEAR NEET QUESTIONS 

1. Select the mismatch  

1. Frankia                    -     Alnus
2. Rhodospirillum      -     Mycorrhiza
3. Anabaena                -    Nitrogen fixer
4. Rhizobium               -     Alfa-alfa

2. In which of the following, all three are macronutrients? 

1. Iron ,Copper, Molybdenum
2. Molybdenum, Magnesium, Manganese
3. Nitrogen, Nickel, Phosphorous
4. Boron, Zinc, Manganese

3. Which is essential for the growth of root tip?  

1. Zn
2. Fe
3. Ca
4. Mn

4. During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by  

1. Leghaemoglobin
2. Xanthophylls
3. Carotene
4. Cytochrome

5. Deficiency symptoms of nitrogen & potassium are visible first in 

1. Senescent leaves
2. Young leaves
3. Roots
4. Buds

6. The first stable product of fixation of atmospheric nitrogen in leguminous plants is 

1. NO¯₂
2. Ammonia
3. NO¯₃
4. Glutamate

7. Which one of the following is correctly matched?                  

1. Passive transport of nutrients – ATP
2. Apoplast – Plasmodesmata
3. Potassium – Readily immobilisation
4. Bakane of rice seedings – F Skoog

8. Which one of the following helps in absorption of phosphorous from soil by plants?                         

1. Rhizobium
2. Frankia
3. Anabaena
4. Glomus

9. The function of leghaemoglobin in the root nodules of legumes is

1. Oxygen removal
2. Nodule differentiation
3. Expression of nif gene
4. Inhibition of nitrogenase activity

10. Nitrifying bacteria   

1. Convert free nitrogen to nitrogen compounds
2. Convert proteins into ammonia
3. Reduce nitrates to free nitrogen
4. Oxidise ammonia to nitrates

11. Which one of the following elements in plants is not remobilised?  

1. Calcium
2. Potassium
3. Sulphur
4. Phosphorous

12. Which one of the following is not a micronutrient?  

1. Molybdenum
2. Magnesium
3. Zinc
4. Boron

13. An element playing important role in nitrogen fixation is    

1. Molybdenum
2. Copper
3. Manganese
4. Zinc

14. The common nitrogen-fixer in paddy fields is  

1. Rhizobium
2. Azospirillum
3. Oscillatoria
4. Frankia

15. Manganese is required in  

1. Nucleic acid synthesis
2. Plant cell wall formation
3. Photolysis of water during photosynthesis
4. Chlorophyll synthesis

16. Nitrogen fixation in root nodules of Alnus is brought about by 

1. Bradyrhizobium
2. Clostridium
3. Frankia
4. Azorhizobium

17. Which of the following is a flowering plant with nodules containing filamentous nitrogen fixing microorganism?       

1. Casuarina equisetifolia
2. Crotalaria juncea
3. Cycas revoluta
4. Cicer arientinum

18. Which one of the following elements is not an essential micronutrient for plant growth?                                

1. Mn
2. Zn
3. Cu
4. Ca

19. A plant requires magnesium for 

1. Holding cells together
2. Protein synthesis
3. Chlorophyll synthesis
4. Cell wall development

20. The deficiencies of micronutrients, not only affects growth of plants but also vital functions such as photosynthetic & mitochondrial electron flow. Among the list given below, which group of three elements shall affect most, both photosynthetic & mitochondrial electron transport?   

1. Co, Ni, Mo
2. Ca, K, Na
3. Mn, Co, Ca
4. Cu, Mn, Fe

21. A free living, nitrogen fixing cyanobacterium which can also form symbiotic association with the water fern Azolla is                                               

1. Tolypothrix
2. Chlorella
3. Nostoc
4. Anabaena

22. The major role of minor elements inside living organisms is to act as 

1. Binder of cell structure
2. Cofactors of enzymes
3. Building blocks of important amino acids
4. Constituent of hormones

23. Boron in green plants assists in 

1. Sugar transport
2. Activation of enzymes
3. Acting as enzyme cofactor
4. Photosynthesis

24. Greyspots of oat are caused by deficiency of             

1. Fe
2. Cu
3. Zn
4. Mn

25. The major portion of the dry weight of plants comprises of      

1. Carbon, hydrogen & oxygen
2. Nitrogen, phosphorous, & potassium
3. Calcium, magnesium, & sulphur
4. Carbon, nitrogen & hydrogen

26. Choose the correct match                                     Bladderwort,  sundew, venus fly trap

1. Nepenthes, Dionea, Drosera
2. Nepenthes, Utricularia, Vanda
3. Utricularia, Drosera, Dionea
4. Dionea, Trapa, Vanda

27. Passive absorption of minerals depend on  

1. Temperature
2. Temperature & metabolic inhibitor
3. Metabolic inhibitor
4. Humidity

28. Enzyme involved in nitrogen assimilation             

1. Nitrogenase
2. Nitrate reductase
3. Transferase
4. Transaminase

29. In plants inulin & pectin are   

1. Reserved food material
2. Wastes
3. Secretory material
4. Insect attracting material

30. Which aquatic fern performs nitrogen fixation?  

1. Azolla
2. Nostoc
3. Salvia
4. Salvinia

31. Zinc as a nutrient is used by the plants in the form of

1. Zn
2. Zn²⁺
3. ZnO
4. ZnSO₄

32. The plants grown in magnesium deficient but urea sprayed soil would show  

1. Deep green foliage
2. Early flowering
3. Yellowing of leaves
4. Loss of pigments in petals

33. Which of the following is not caused by deficiency of mineral nutrition? 

1. Necrosis
2. Chlorosis
3. Etiolation
4. Shortening of internodes

34. Which of the following is a free living aerobic, non-photosynthetic nitrogen fixer?  

1. Rhizobium
2. Azotobacter
3. Azospirillum
4. Nostoc

 

35. The core metal of chlorophyll is  

1. Iron
2. Magnesium
3. Nickel
4. Copper

 

36. Which one of the following is not an essential element for plants?  

1. Potassium
2. Iron
3. Iodine
4. Zinc

37. Which one of the following is a micronutrient for plants?  

1. Calcium
2. Magnesium
3. Manganese
4. Nitrogen

38. Which of the following can fix atmospheric nitrogen?  

1. Albugo
2. Cystopus
3. Saprolegnia
4. Anabaena

39. Phosphorous & nitrogen ions generally get depleted in soil because they usually occur as  

1. Neutral ions
2. Negatively charged ions
3. Positively charged ions
4. Both positively & negatively charged but disproportionate mixture

40. Minerals absorbed by roots move to the leaf through        

1. Xylem 
2. Phloem
3. Sieve tubes
4. None of these