I. Regulation of metabolic activities

II. Activation of certain enzymes

III. Involved in normal functioning of the cell wall and required for the formation of mitotic spindle.

Which of the following ion is best suitable for it?

  1. Ca++
  2. K+
  3. Zn++
  4. Cl-
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Which of the following is not related to Mg?

  1. Absorbed as Mg++
  2. Activates the enzymes of respiration, photosynthesis
  3. Involved in the synthesis of DNA and RNA
  4. Involved in the formation of spindle formation
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Which of the following ion is important for maintaining ribosome structure?

  1. Mg++
  2. Mn++
  3. Ca++
  4. Zn++
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The component of ring structure of chlorophyll is

  1. Mg
  2. Ca
  3. Zn
  4. Cl
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Which of the form of Sulphur is absorbed by plants?

  1. Sulphate
  2. S8
  3. S4
  4. SO2
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The amino acid or acids which does or do not have Sulphur?

  1. Cysteine
  2. Methionine
  3. Serine
  4. Both B and C
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Which of the following does not has Sulphur?

  1. Thiamine
  2. Biotin
  3. Coenzyme A
  4. Ascorbic Acid
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Plants obtain Iron in the form of

  1. Ferric ions
  2. Ferrous ions
  3. FeO
  4. Both B and C
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Which of the following has both sulphur and iron?

  1. Ferredoxin
  2. Cytochromes
  3. methionine
  4. cystine
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Which of the following has both Fe and Mg?

  1. For the formation of Ferredoxin
  2. For the formation of Chlorophyll
  3. For the formation of Ribosome
  4. For the formation of Nucleotide
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