NEET Biology – Mineral Nutrition In Plants Multiple Choice Questions

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Mineral Nutrition In Plants Multiple Choice Questions.

Question 1. Iron is mainly absorbed in :

  1. Ferrous form
  2. Ferric form
  3. Combined form
  4. All the above.

Answer:  4. Ferrous form

Question 2. Micronutrients are those elements :

  1. Not important for plant growth
  2. Required in large quantity
  3. Required in small quantities and are important as macro-nutrients
  4. Not present in the soil.

Answer: 3. Required in small quantities and are important as macro-nutrients

Question 3. Which of the following micronutrients can be absorbed by foliage?

  1. Hydrogen
  2. Potassium
  3. Sodium
  4. Zinc.

Answer: 2. Potassium

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Question 4. Which of the following elements are not absorbed from the soil?

  1. Nitrogen
  2. Iron
  3. Boron
  4. Carbon.

Answer: 4. Carbon.

Question 5. Which of the following is a component of chlorophyll?

  1. Calcium
  2. Sodium
  3. Zinc
  4. Magnesium.

Answer:  4. Magnesium.

Mineral Nutrition in Plants MCQs for NEET Biology

Question 6. Bidirectional translocation of minerals takes place through :

  1. Xylem
  2. Phloem
  3. Parenchyma
  4. Cambium.

Answer: 1. Xylem

Mineral Nutrition Mcqs For Neet

Question 7. The most abundant element in plants is :

  1. Oxygen
  2. Nitrogen
  3. Carbon
  4. Hydrogen.

Answer : 3. Carbon

Question 8. Minerals of soil are derived from :

  1. Rocks
  2. Clay
  3. Carbon
  4. Organisms.

Answer: 1. Rocks

Question 9. Trace elements are :

  1. Required in very minute quantity
  2. Radioactive
  3. Those which draw other elements
  4. First discovered in protoplasm.

Answer: 1.  Required in very minute quantity

Question 10. Pre-mature leaf-fall is caused by to deficiency of :

  1. Zinc
  2. Cobalt
  3. Nitrogen
  4. Potassium.

Answer : 3. Nitrogen

Question 11. The chlorophyll is not formed without :

  1. Potassium
  2. Magnesium
  3. Calcium
  4. Phosphorus.

Answer: 2.  Magnesium

Mineral Nutrition Mcqs For Neet

Question 12. The movement of mineral ions into plant root cells as a result of diffusion is called :

  1. Endocytosis
  2. Osmosis
  3. Passive absorption
  4. Active absorption.

Answer: 3. Passive absorption

Question 13. Woodward (1669) observed that plants grow better in muddy water than in rainwater because :

  1. Muddy water had macronutrients dissolved in it
  2. Muddy water had micronutrients dissolved in it
  3. Muddy water had most of the essential elements dissolved in it
  4. None of the above.

Answer: 3. Muddy water had most of the essential elements dissolved in it

Question 14. Who gave the criteria of essentiality?

  1. R. Hill
  2. F.F. Blackman
  3. M.P. Kaushik
  4. D.L. Arnon.

Answer: 4. D.L. Arnon.

Question 15. Which one of the following elements is essential for the photolysis of water?

  1. Chlorine
  2. Calcium
  3. Sodium
  4. Sulphur.

Answer: 1. Chlorine

Mineral Nutrition Mcqs For Neet

Question 16. Which one of the following plants cannot fix atmospheric nitrogen directly?

  1. Bean
  2. Castor
  3. Gram
  4. Pea.

Answer: 2. Castor

Question 17. In the nitrogen cycle, nitrite is converted to nitrate by :

  1. Azotobacter
  2. Rhizobium
  3. Nitrosowonas
  4. Nitrobacter.

Answer: 4. Nitrobacter.

Question 18. Plants absorb mineral salts from the soil solution through:

  1. A semipermeable membrane into the cytoplasm by selective absorption
  2. Perforations at the apex of root hair cells
  3. The cell wall which is permeable
  4. None of the above.

Answer: 1.  A semipermeable membrane into the cytoplasm by selective absorption

Mineral Nutrition In Plants Mcqs Neet

Question 19. Deficiency of iron causes :

  1. Bending of leaf tip
  2. Interveinal chlorosis first in young leaves
  3. Decrease in protein synthesis
  4. Reduced leaves and stunted growth.

Answer: 2. Interveinal chlorosis first in young leaves

Question 20. The function of Mg and Fe is:

  1. Synthesis of chlorophyll
  2. Synthesis of proteins
  3. Synthesis of fat
  4. Synthesis of organic acids.

Answer: 1. Synthesis of chlorophyll

Question 21. Which of the following elements is involved in nitrogen metabolism in the reduction of nitrates?

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

Answer: 2.  Molybdenum

Question 22. The mineral constituent of the cell wall is :

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

Answer: 4.  Calcium.

Question 23. Active uptake of minerals by roots mainly depends on the :

  1. Availability of oxygen Light
  2. Temperature
  3. Availability of carbon dioxide.

Answer: 1.  Availability of oxygen Light

Mineral Nutrition In Plants Mcqs Neet

Question 24. Which of the following is a macronutrient?

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

Answer: 1.  Ca

Question 25. Which of the following is a trace element?

  1. Zn
  2. Ca
  3. P
  4. Mg.

Answer: 1. Zn

Question 26. Synthesis of IAA requires:

  1. Iron
  2. Zinc
  3. Calcium
  4. Nitrogen.

Answer: 2. Zinc

Question 27. Which of the following is common to ferredoxin and cytochrome? ,

  1. Na
  2. K
  3. Fe
  4. Mg.

Answer : 3. Fe

Question 28. The brown colour of the leaves of cabbage is due to the deficiency of:

  1. Boron
  2. Nitrogen
  3. Sulphur
  4. Calcium.

Answer: 1. Boron

Neet Mcqs On Essential Minerals In Plants

Question 29. Most of the minerals in inorganic form are transported through :

  1. xylem
  2. Phloem
  3. Cortex
  4. Cambium.

Answer: 1. xylem

Mineral Nutrition MCQ Question 30. The mass flow hypothesis explains the transport of:

  1. Water
  2. Food materials
  3. Salts
  4. Auxins.

Answer:  2. Food materials

Question 31. Which of the following does not require carrier molecules during transport through cell membranes?

  1. Na+ and K+ transport
  2. Active transport of sugars and amino acids
  3. Simple diffusion
  4. Facilitated diffusion.

Answer: 3. Simple diffusion

Question 32. In a citrus plantation, all the plants were found to be suffering from the die-back disease and spraying of fungicides was of no help. This problem was due to the deficiency of:

  1. Auxins
  2. Zinc
  3. Gibberellic acid
  4. Copper.

Answer: 4. Copper.

Question 33. In fruit trees a disease exanthema is caused by the deficiency of:

  1. Na
  2. Ca
  3. Cu
  4. P

Answer: 3. Cu

Neet Mcqs On Essential Minerals In Plants

Question 34. Active transport of molecules from outside to inside across a membrane requires:

  1. Cyclic AMP
  2. Acetylcholine
  3. ATP (energy)
  4. Choline.

Answer:  3. ATP (energy)

Question 35. If chlorophyll is burnt, what will be left?

  1. Fe
  2. Na
  3. Mg
  4. Mn.

Answer: 3.  Mg

Mineral Nutrition MCQ Question 36. Deficiency of molybdenum causes:

  1. Poor development of vasculature
  2. Bending of leaves
  3. Chlorosis of leaves
  4. Mottling or necrosis of leaves.

Answer: 4.  Mottling or necrosis of leaves

Question 37. Which one of the following elements plays an important role in biological nitrogen fixation?

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

Answer: 1. Molybdenum

Question 38. Photolysis of water is increased by :

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

Answer: 1.  Manganese

Neet Mcqs On Essential Minerals In Plants

Question 39. The role of inorganic nutrients in plant growth was at first indicated by :

  1. Wood ward
  2. Knop ‘
  3. Stewart
  4. De Saussure.

Answer: 2.  Knop ‘

Question 40. Which of the following essential mineral elements is not a constituent of any enzyme, but stimulates the reactions of many enzymes?

  1. Potassium
  2. Zinc
  3. Manganese
  4. Magnesium.

Answer: 1. Potassium

Question 41. The essential nutrient element required by plants in the least quantity is :

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

Answer: 3. Molybdenum

Question 42. Ammonium sulfate is a :

  1. Enzyme
  2. Fertilizer
  3. Weed killer
  4. Pesticide.

Answer: 2. Fertilizer

Question 43. For normal growth of plants one of the following is not required :

  1. Magnesium
  2. Lead
  3. Potassium
  4. Iron.

Answer: 2. Lead

Macro And Micronutrients In Plants Mcqs For Neet

Question 44. The essential element for the synthesis of auxin is :

  1. Zn
  2. Phosphorus
  3. Sulphur
  4. Potassium.

Answer: 1. Zn

Question 45. Pre-mature leaf-fail is caused due to the deficiency of :

  1. Molybdenum
  2. Sodium
  3. Phosphorus
  4. Sulphur.

Answer: 3. Phosphorus

Question 46. Which one of the following can fix atmospheric nitrogen directly?

  1. Pea
  2. Brassica
  3. Castor
  4. Petunia.

Answer: 1. Pea

Biology MCQ Mineral Nutrition Question 47. Mg and Fe are required by the plants for the :

  1. Energy transfer is concerned with photosynthesis
  2. Synthesis of chlorophyll pigments in leaves
  3. Mechanism of stomatal opening and closing
  4. Translocation of carbohydrates from the leaf to the stem.

Answer: 2. Synthesis of chlorophyll pigments in leaves

Question 48. The non-essential elements in the plant are:

  1. Calcium
  2. Barium
  3. Iron
  4. Magnesium.

Answer: 2.  Barium

Macro And Micronutrients In Plants Mcqs For Neet

Question 49. An example of an anaerobic nitrogen-fixing saprophytic bacterium is :

  1. Azotobacter
  2. Rhizobium
  3. Clostridium
  4. Pseudomonas.

Answer: 3.  Clostridium

Question 50. Organisms which fix free nitrogen in the soil are :

  1. Green algae
  2. Ferns
  3. Blue-green algae
  4. Mosses.

Answer: 3.  Blue-green algae

Question 51. Nodules with nitrogen-fixing bacteria are present in the roots of:

  1. Cotton
  2. Gram
  3. Wheat
  4. Maize.

Answer: 2.  Gram

Question 52. Members of the bean family are particularly important for the rotation of crops:

  1. Because they add green manure
  2. They add nitrates to the soil
  3. They make the soil porous
  4. They add calcium to the soil.

Answer: 2.  They add nitrates to the soil

Question 53. Nitrogen is an essential component of :

  1. Fats
  2. Carbohydrates
  3. Proteins
  4. Hormones.

Answer: 3. Proteins

Question 54. The most important element associated with proto-plasm and proteinaceous materials of plants is :

  1. Oxygen
  2. Nitrogen
  3. Potassium
  4. Sulphur.

Answer: 2. Nitrogen

Question 55. Which is a micronutrient?

  1. Calcium
  2. Zinc
  3. Magnesium
  4. Phosphorus.

Answer: 2.  Zinc

Macro And Micronutrients In Plants Mcqs For Neet

Question 56. Minerals are absorbed by roots mainly by :

  1. Active absorption
  2. Diffusion
  3. Donnan equilibrium
  4. Transfusion.

Answer: 1.  Active absorption

NEET Biology Mineral Nutrition In Plants Question 57. Which of the following elements can plants take directly from air?

  1. Phosphorus
  2. Nitrogen
  3. Carbon
  4. Calcium.

Answer: 3.  Carbon

Question 58. Chlorosis in plants occurs due to :

  1. High sunlight intensity
  2. Low light intensity
  3. Yellow pigment
  4. Deficiency of magnesium and iron in the soil.

Answer: 4.  Deficiency of magnesium and iron in the soil.

Question 59. Hydroponics is ;

  1. The study of soil conservators
  2. Culture of plants in water
  3. The study of plant ecology
  4. None of the above.

Answer:  2. Culture of plants in water

Question 60. Non-essential elements for the proper growth of the plant are:

  1. Potassium
  2. Calcium
  3. Magnesium
  4. Culture of plants in water

Answer: 1.  Potassium

Question 61. Nitrogen is usually absorbed by the plant in the form of:

  1. Nitrogen peroxide
  2. Free nitrogen
  3. Nitrate
  4. None of the above.

Answer: 3. Nitrate

Mineral Nutrition Mcqs For Neet

Question 62. Insectivorous plants can grow well in a soil deficient in: _

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

Answer: 3.  Nitrogen

Question 63. Without essential mineral nutrients leaves of many plants turn yellow because of:

  1. Plasmolysis
  2. Etiolation
  3. chlorosis
  4. None of the above.

Answer: 3. chlorosis

NEET Biology Mineral Nutrition In Plants Question 64. Which element is essential as an electron carrier?

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

Answer: 1.  Iron

Question 65. Enzyme-catalyzed reactions can be inhibited by :

  1. Mg2++
  2. Zn2++
  3. Cu2++
  4. Hg2++.

Answer: 4.  Hg2++.

Question 66. If a dried leaf is taken in a crucible and heated to 600°C, a grey-coloured powder is left behind. It is referred to as:

  1. Dry weight
  2. Plant ash
  3. Wilting percentage
  4. Protein content of the plant.

Answer: 2.  Plant ash

Question 67. In the nodules of roots in leguminous plants, we find :

  1. N2 producing bacteria
  2. Denitrifying bacteria
  3. Fixing bacteria
  4. Ammonifying bacteria.

Answer: 3.  Fixing bacteria

Question 68. Which of the following is an obligate stem parasite?

  1. Cuscuta
  2. Orobanche
  3. Dalbergia sissoo
  4. Monotropa.

Answer: 1. Cuscuta

Mineral Nutrition Mcqs For Neet

Question 69. Which of the following is a partial root parasite?

  1. Sanlalum album
  2. Rafflesia
  3. Monotropa
  4. Mango,

Answer: 1.  Sanlalum album

Question 70. Pick up the saprophytic angiosperm :

  1. Neottia
  2. Agaricus
  3. Eucalyptus
  4. Cuscuta.

Answer: 1.  Neottia

Question 71. Helotism is master and slave relationship found in :

  1. Lichens
  2. Mysmicophytes
  3. Nepenthes
  4. Cuscuta.

Answer: 1.  Lichens

Question 72. The insectivorous plant, Nepenthes is also known as:

  1. Sundew plant
  2. Ficus
  3. Pitcher plant
  4. Dischidia.

Answer: 3. Pitcher plant

Question 73. The traps of carnivorous plants contain :

  1. Polysaccharides
  2. Digestive enzymes
  3. Phospholipids
  4. Weedicidcs.

Answer: 2. Digestive enzyme

Question 74. Which of the following formulae describes nitrogen fixation?

  1. N2 +3H2→ 2NH3
  2. 2NH+4 +202 + 8e→ N2 + 4H20
  3. 2NH3 →N2+ 3H2 ‘
  4. 2N2+ glucose —> 2 Amino acids.

Answer: 1. N2 +3H2→ 2NH3

Neet Mcqs On Essential Minerals In Plants

Question 75. Mineral uptake by a terrestrial plant is limited by insufficient:

  1. Blue light
  2. Soil water
  3. Apoplast
  4. Phellogen.

Answer: 2.  Soil water

Question 76. Plants that have mutualistic relations with nitrogen¬fixing bacteria provide the bacteria with :

  1. N2
  2. Enzymes
  3. Sugars
  4. Nitrite.

Answer: 3.  Sugars

Question 77. The nodule in a plant root where nitrogen-fixing bacteria live forms from cells of the :

  1. Epidermis.
  2. Cortex.
  3. Endodermis
  4. Vascular cylinder.

Answer: 2.  Cortex.

Mineral Nutrition MCQ  Question 78. Plants, such as clover and beans, that have nitrogen-fixing bacteria in their roots are in which of the following families?

  1. Orchidaceae
  2. Asteraceae
  3. Solanaceae
  4. Leguminosae.

Answer: 2. Asteraceae

Question 79. Contact exchange of ions occurs:

  1. Between root and soil particles
  2. Root and soil solution
  3. Cell and external solution
  4. All the above.

Answer: 1.  Between root and soil particles

Question 80. Bacteria that fix nitrogen for such plants as clover and beans are in which of the following genera?

  1. Denitrovibrio
  2. Rhizobium
  3. Pseudomonas
  4. Nitrobacter.

Answer: 2.  Rhizobium

Neet Mcqs On Essential Minerals In Plants

Question 81. Salt respiration is :

  1. Excretion of salt through respiratory channels
  2. Decrease in respiration during salt absorption
  3. Additional respiration involved in salt absorption
  4. Linking of ion movement with respiratory chain.

Answer: 3.  Additional respiration involved in salt absorption

Question 82. Which of the following plants will enrich the soil with nitrogen?

  1. Corn
  2. Alfalfa
  3. Wheatgrass
  4. Beets.

Answer: 2.  Alfalfa

Question 83. Organisms that fix nitrogen in aquatic habitats are :

  1. Green algae
  2. Cyanobacteria
  3. Crown algae

Protozoa.

Answer: 2.  Cyanobacteria

Question 84. ‘Grey-Speck’ disease is caused by the deficiency of:

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

Answer: 3.  Manganese

Mineral Nutrition MCQ  Question 85. The need of individual plants for any particular element is normally defined in terms of:

  1. Critical period
  2. Critical condition
  3. Critical concentration
  4. None of the above.

Answer:  3.  Critical concentration

Question 86. Permeability of protoplasm is accelerated by :

  1. Na
  2. K
  3. Ca
  4. P.

Answer: 2. K

Question 87. Black necrosis of the stem and root tip is caused by the deficiency of:

  1. Magnesium
  2. Chlorine
  3. Copper
  4. Boron.

Answer: 4. Boron.

Mineral Nutrition In Plants Mcqs Neet

Question 88. Which of the following is not caused by a deficiency of mineral nutrition?

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

Answer:  Etiolation

Mineral Nutrition MCQ  Question 89. Which of the following is not essential for plant growth?

  1. Zn
  2. I,
  3. K
  4. Fe.

Answer: 2.  I

Question 90. Which of the following nutrient elements is most important for protein synthesis?

  1. N,
  2. K
  3. Mg
  4. Fe.

Answer: 1. N

Question 91. Which of die following is not a major element?

  1. Zn
  2. Ca
  3. Mg
  4. P.

Answer: 1. Zn

Question 92. Nitrogen fixation by bacteria requires the enzyme :

  1. Decarboxylase
  2. Nitrogenase
  3. Nitrogen deaminase
  4. Nitrodioxidase.

Answer: 2. Nitrogenase

Question 93. Zinc is essential for:

  1. Biosynthesis of chlorophylls
  2. Biosynthesis of 3—IA A
  3. Stomatal closing
  4. Oxidation of carbohydrates.

Answer: 2.  Biosynthesis of 3—IA A

Question 94. Plants that have naturalistic relations with nitrogen¬fixing bacteria receive from the bacteria :

  1. Ammonium
  2. Amino acids
  3. Nitrate
  4. Nitrite.

Answer:  1. Ammonium

Mineral Nutrition In Plants Mcqs Neet

Mineral Nutrition MCQ  Question 95. An association between a fungus and a root of a higher plant is termed mycorrhiza which is an example of:

  1. Parasitism
  2. Helotism
  3. Symbiosis
  4. Myrmecophily.

Answer: 3.  Symbiosis

Question 96. Which of the following groups of plants can grow in nitrogen-deficient soils?

  1. Lichens
  2. Gymnosperms
  3. Bryophytes
  4. Insectivorous plants.

Answer: 4. Insectivorous plants.

Question 97. The theory which suggests that C02 produced in respiration plays an important role in mineral absorption is:

  1. Contact exchange theory
  2. Carbonic acid exchange theory
  3. Active absorption dietary
  4. None of the above.

Answer: 2.  Carbonic acid exchange theory

Question 98. Nodulation of legumes is reduced in deficiency of:

  1. Sulphur and potassium
  2. Sulphur and boron
  3. Manganese and copper
  4. Zinc and iron.

Answer: 2. Sulphur and boron

Question 99. Presence of phosphorus:

  1. Brings about healthy root growth
  2. Promotes fruit ripening
  3. Retards protein formation

None.

Answer: 3. Retards protein formation

Biology MCQ Mineral Nutrition Question 100. A balancing element is :

  1. Ca
  2. Mg
  3. K
  4. All the above.

Answer: 4. All the above.

Question 101. Match List I ( nutrient) with List II (deficiency symp¬tom in leaf) and select the correct answer using the codes given below the lists:

Plant And Nutrition Special Modes Mineralof Nutrition In Plants Match The Following Question 101

Plant And Nutrition Special Modes Mineralof Nutrition In Plants Match the Following Question 101

Answer: 2.

Question 102. The soluble resources of phosphorus and nitrogen in soil generally get depleted because they are usually found as:

  1. A disproportionate mixture of negatively and positively charged ions
  2. Negatively charged ions
  3. Only positively charged ions
  4. A balanced mixture of negatively and positively charged ions.

Answer: 2.  Negatively charged ions

Question 103. At times of heavy rain, minerals in the upper layers of the soil are moved downward by a process known as:

  1. Smearing
  2. Leaching
  3. Weathering
  4. Gravitation.

Answer: 2. Leaching

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