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Mineral Nutrition Test - 1

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Mineral Nutrition Test - 1
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Weekly Quiz Competition
  • Question 1
    1 / -0

    The most abundant element found in plants is

    Solution

    Carbon is generally present in plant tissues in large amounts and mainly obtained from CO2 and H2O.

  • Question 2
    1 / -0

    Phosphorous is a constituent of 

    A. Cell membrane

    B. Nucleic acids 

    C. cellwall 

    D.chlorophyll

    Solution

    Phosphorus is a constituent of cell membranes, certain proteins, all nucleic acids and nucleotides

  • Question 3
    1 / -0

    Which one of the following is not a micronutrient?

    Solution

    Magnesium is macronutrient while all others are micro nutrient.

  • Question 4
    1 / -0
    In nitrogen cycle, atmospheric nitrogen is fixed by bacteria and converted into ammonia. Ammonia is further converted into other forms of nitrogen. At the end of the cycle it returns to atmosphere by the process of 
  • Question 5
    1 / -0

    Magnesium is component of

    Solution

    It is absorbed by plants in the form of divalent Mg2+. Magnesium is a constituent of the ring structure of chlorophyll and helps to maintain the ribosome structure.

  • Question 6
    1 / -0

    The concentration of macro nutrients in dry matter is

    Solution

    Macronutrients are generally present in plant tissues in large amounts (in excess of 10m mole Kg –1 of dry matter).

  • Question 7
    1 / -0
    Active mineral absorption depends on
  • Question 8
    1 / -0

    An immobile element in plants is

    Solution

    The deficiency symptoms tend to appear first in the young tissues whenever the elements are relatively immobile and are not transported out of the mature organs. Example, calcium.

  • Question 9
    1 / -0
    Deficiency of molybdenum causes
  • Question 10
    1 / -0
    EDTA is commonly used in tissue culture media. It is
  • Question 11
    1 / -0

    It is the technique of growing plants in above-ground strands provided with fine mist of normal solution.

    Solution

    Aeroponics is the technique of growing plants in above ground strands provided with fine mist of normal solution. It is used to know the deficiency symptoms of minerals.

  • Question 12
    1 / -0
    Death of the stem and root tips occurs due to deficiency of
  • Question 13
    1 / -0

    Hydroponics refers to growing plant in

    Solution

    Hydroponics is a subset of hydroculture, the method of growing plants without soil, using mineral nutrient solutions in a water solvent

  • Question 14
    1 / -0
    Which of the following pigments is essential for nitrogen fixation by leguminous plants?
  • Question 15
    1 / -0
    Which of the following play(s) the role of conversion of nitrate salts into free nitrogen gas in nitrogen cycle?
  • Question 16
    1 / -0
    Absence of magnesium from plant tissue results in
  • Question 17
    1 / -0
    Which of the following micronutrients can be absorbed by foliage?
  • Question 18
    1 / -0
    Plant ash is an indication of
  • Question 19
    1 / -0
    Root hairs do not play any role in
  • Question 20
    1 / -0

    Element present in middle lamella

    Solution

    Calcium is required by meristematic and differentiating tissues. During cell division it is used in the synthesis of cell wall, particularly as calcium pectate in the middle lamella.

  • Question 21
    1 / -0

    Which element is essential for photolysis of water?

    Solution

    Chlorine is absorbed in the form of chloride anion (Cl–). Along with it Na+ and K+, it helps in determining the solute concentration and the anioncation balance in cells. It is essential for the water-splitting reaction in photosynthesis

  • Question 22
    1 / -0

    The essential element having the amino acids methionine and cysteine is

    Solution

    Plants obtain sulphur in the form of sulphate. Sulphur is present in two amino acids – cysteine and methionine and is the main constituent of several coenzymes, vitamins (thiamine, biotin, Coenzyme A).

  • Question 23
    1 / -0
    Which of the following elements has not been proved to be essential for plants?
  • Question 24
    1 / -0

    Chlorosis is referred as

    Solution

    Chlorosis is the loss of chlorophyll leading to yellowing in leaves. This symptom is caused by the deficiency of elements. N, K, Mg, S, Fe, Mn, Zn and Mo

  • Question 25
    1 / -0
    Which of the following is not an essential micronutrient?
  • Question 26
    1 / -0
    Which of the following elements is necessary for translocation of sugars in plants?
  • Question 27
    1 / -0

    Which among the following essential element play important role in opening and closing of stomata?

    Solution

    Essential elements can alter the osmotic potential of a cell. Potassium plays an important role in the opening and closing of stomata.

  • Question 28
    1 / -0
    Which of the following is a macronutrient?
  • Question 29
    1 / -0

    Plant with zinc deficiency show reduced biosynthesis of

    Solution

    Plants obtain zinc as Zn2+ ions. It activates various enzymes,especially carboxylases. It is also needed in the synthesis of auxin.If there is deficiency in zinc to plants then it leads to reduced synthesis of auxin.

  • Question 30
    1 / -0

    The correct combinations of the following is:

    Solution

    Sulphur contains amino acid methionine, zinc is important for auxin, chlorophyll contains magnesium and molybdenum take the help of nitrogenase.

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