Phosphorus is not a component of

  1. Cell membrane
  2. Certain Proteins
  3. Nucleosides
  4. Nucleotides
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Which of the following ion is required more in meristematic tissues, buds, leaves and root tips?

  1. K+
  2. Cl-
  3. P
  4. N
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Which of the following is not associated with potassium ions?

  1. Maintain anion-cation balance in cells
  2. Involved in protein synthesis
  3. Involved in opening and closing of stomata and activation of enzyme
  4. Maintenance of the turgidity of the cells and all phosphorespiration reactions
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Calcium is required by

Find the incorrect one.

  1. Meristematic and Differentiating tissues
  2. Used in synthesis of Cell membrane as calcium pectate in the middle lamella
  3. It accumulates in older leaves
  4. It is needed during the formation of mitotic spindle
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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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