NEET UG Biology Mineral Nutrition MCQs

1. Due to which type of bacteria atmospheric N₂ is maintained ?

(a) Nitrosomonas   (b) Rhizobium

(c) Nitrobacter   (d) Pseudomonas

2. Which method of hydroponics is used for providing nutrients to plants or seedlings in environ ment saturated with fine droplets of nutrients ?

(a) Aeroponics   (b) Continous flow of cultured solution

(c) Static cultured solution   (d) Suspension culture

3. Yellowing of leaves is called -

(a) Tylosis   (b) Chlorosis   (c) Necrosis   (d) Florosi

4. Standards for mineral elements essentially was suggested by which scientist ?

(a) Julious Vonsachs   (b) Cornelius Von   (c) Arnon and Stout   (d) Jhon Ingen house

5. What is concentration of micronutrients in the dry mass of plants per gram ?

(a) 1 to 10 mg   (b) 0.1 mg   (c) 0.1 mg or less than that   (d)10 mg or more than that

6. Which group is included in Macronutrients?

(a) H, Mn, S   (b) S, P, Ca, Mg   (c) Mn, Cu, N   (d) Na, Cl,

7. Which group is included in micronutrients ?

(a) Mn, Cu, Mo   (b) Cl, Ni, Co, Mg   (c) C, H, O, N   (d) Cl, S, Ni, Fe

8. Out of the following, what is the function of Potasium ?

(a) ion balance   (b) stabilizes ribosomes

(c) Required for iron absorption   (d) In active site of many redox enzymes

9. Which element is necessary to stabilize ribosomes ?

(a) Mn   (b) Mg   (c) Mo   (d) Ni

10. In which form Phosphorous is absorbed from soil ?

(a) H₃PO₄^-  (b)HPO₄^- (c) H₂PO₄^- (d) H₄P₂O₇

11. Which elements play significant role in structure and synthesis of chlorophyll ?

(a) Fe, Ca   (b) Fe, Mg   (c) Cu, Fe   (d) Mg, Fe

12. Deficiency of which element kills terminal buds leaving a rosette effect on the plant ?

(a) Mo   (b) B   (c) Cu   (d) None

13. Deficiency of which element shows stunted growth ?

(a) Mo, Ca, S, N   (b) Cl, N, Cu, Zn

(c) P, S, Mn, Ca   (d) K, N, Fe, Ca

14. State importance of iron ?

(a) Required for activation of Carboxyalase enzyme.

(b) Required for the structure of Ferodoxin.

(c) Required for the photolysis of H₂O during photosynthesis.

(d) Required for the absorption and metabolism of Ca.

15. Which element is required for absorption and utilization of calcium ?

(a) Fe (b) Cu (c) B (d) K

16. State deficiency of Cl.

(a) Wilting of stubby roots (b) brown spoted fruits

(c) accumalation of purple pigment (d) premature leaf fall

17. Due to which element deficiency bark of tree becomes rough and gets split and exudes gum-like secretion ?

(a) Zn (b) K (c) P (d) Cu

18. Which element deficiency shows bronzing leaves ?

(a) K (b) N (c) Ca (d) S

19. Donnan equillibrium is achieved at which surface ?

(a) Cell wall (b) Nuclear membrance

(c) plasma membrance (d) Vascular membrace

20. What is the function of Zn ?

(a) Synthesis of Carboxyalase enzyme

(b) Formation of Indol Acetic acid (IAA)

(c) required for absprption and utilization of Ca.

(d) required for maintenance of ribosomal constituent.

21. One plant is given Urea fertilizer, but it has deficiency of phosphorous, this plant will show which symptom ?

(a) Cambium activity reduces (b) fruit size deminishes

(c) Grey spots on leaves (d) seed dormancy increases.

22. State deficiency symptoms of Mo.

(a) fruit yeild decreases (b) fall of fruit

(c) N - deficiency appears. (d) death of root-apex and shoot-apex.

23. State importance of Ca.

(a) Structural component of plasma membrance (b) For the synthesis if IAA.

(c) Formation of bipolar centriole during cell-division (d) Formation of nuclear membrance

24. Deficiency of which mineral causes shortening of internodes and reduction in cambium activity ?

(a) K (b) Fe (c) Cu (d) B

25. In the first phase of absorption of mineral ions from soil to root, element passes through which plant ?

(a) Cell wall (b) Nuclear membrance(c) tonoplast (d) plasma membrance

26. By which principle, indirect storage of stable and non-diffusible ions is explained ?

(a) ion exchange (b) principle of mass flow

(c) Donnan equillibrium (d) principle of Diffusion

27. According to mass flow principle what is responsible for absorption of water ?

(a) Transpiration (b) Turgidity (c) Osmotic pressure (d) Turgor pressure

28. Formation of FAD during N₂ fixation occurs during which processes ?

(a) growth and development (b) cell division and differentiation

(c) photosynthesis and transpiration (d) Respiration and photosynthesis

29. Which amino acid is formed when α keto - glutaric acid reacts with NH₃ during transmmination ?

(a) Glutanic acid (b) Aspartic acid (c) Oxalo-acetic acid (d) None of these

30. What is the function of leg haemoglobin ?

(a) To protect Nif gene from the side effect of O₂

(b) To proctect nitrogenase from the side effect of O₂

(c) To provide atmosheric N₂ to Rhizobium bzcteria

(d) To synthesis reduction inducing unit FAD.

31. Toxicity of Mn inhibits function of which other elements ?

(a) Fe, Mg, S (b) Ca, Fe, Mg

(c) Mg, K, Fe (d) Ca, P, S

32. Which substances of soil water are degraded gradually by, atmosphere and microorganisms ?

(a) Organic material (b) inorganic material

(c) elements (d) positive ions

33. Which inorganic substance is obtained by N₂ - fraction ?

(a) Ammonium

(b) amino acid

(c) Ammonia

(d) Ammonium Hydroxide

34. Formation of NO₂ and NO₃ from NH₃ is indentified by which name ?

(a) Nitration (b) Denitrification

(c) Nitrogenation (d) Nitrification

35. The process which release NA₃ from Nitrogenous excretory waste is known as

(a) Ammonification (b) Denitrification

(c) Nitrification (d) Demonification

36. ZNO₃ → ZNO₂ → ZNO →N₂O →N₂ is which process ?

(a) Reductive Amination (b) Ammonification

(c) Denitrification (d) Nitrification

37. Due to natural lightening _____

(a) Nitrate is converted into Nitride

(b) N₂ is converted into nitrate

(c) Modify from ZNO₃ to N₂

(d) to increase activity of Reductive Amination

38. A : Leguminous plant are grown between crops to increase yeild.

     R : Rizobium bacteria are present in the root - nodules of Leguminous plant.

(a) Both A and R are true, & R gives correct explanation of A.

(b) Both A and R are true, but R is not correct explanation of A.

(c) A is true, but R is wrong.

(d) A is wrong, but R is true.

39. Which element is required for photolysis of water during photosynthesis ?

(a) Mo (b) Co

(c) Cu (d) Cl

40. Which element is necessary for meristmatic tissue and differentiating tissues ?

(a) Fe (b) N

(c) Ca (d) B