Match Column-$I$ and Column-$II$ and choose the correct option given below the columns.
Column-$I$ (Element) Column-$II$ (Function)
$A$. Calcium $I$. Required for ionic balance
$B$. Boron $II$. Essential for constitution of nucleic acid
$C$. Phosphorus $III$. Required for absorption of calcium
$D$. Chlorine $IV$. Required to activate respiratory enzyme
$E$. Manganese $V$. Required for synthesis of mitotic spindle

  • A
    $A-I, B-II, C-III, D-IV, E-V$
  • B
    $A-V, B-IV, C-III, D-II, E-I$
  • C
    $A-IV, B-I, C-V, D-III, E-II$
  • D
    $A-V, B-III, C-II, D-I, E-IV$

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Similar Questions

Consider the following statements regarding mineral nutrition:
$(a)$ Moderate decrease or increase of micronutrients causes deficiency and toxicity symptoms respectively.
$(b)$ Excess of manganese causes toxicity of iron, calcium and molybdenum.
$(c)$ $A$ macronutrient is said to be toxic when present below a critical concentration.
Which of the above statements are correct?

Select the correct match for $X$ and $Y$.
Column $X$Column $Y$
$(1)$ Muscle contraction$(P)$ $Mg^{+2}$
$(2)$ Digestion of food$(Q)$ $Ca^{+2}$
$(3)$ Energy exchange$(R)$ $Mo$
$(4)$ Carbohydrate synthesis$(S)$ $PO_4^{-3}$
$(5)$ Nitrogen fixation$(T)$ $Cl^{-}$

Match the following and choose the correct combination from the options given.
Column $I$Column $II$
$a.$ Potassium$(i)$ Germination of pollen grains
$b.$ Molybdenum$(ii)$ Involved in synthesis of auxin
$c.$ Boron$(iii)$ Involved in stomatal movement
$d.$ Zinc$(iv)$ Constituent of ferredoxin
$e.$ Sulphur$(v)$ Component of nitrate reductase

Select the mismatch.

Which of the following is a free-living nitrogen-fixing bacterium?

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