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

Analogy type questions:
$(1)$ Manganese toxicity : Brown spots surrounded by chlorotic veins : Molybdenum deficiency : ........
$(2)$ Conversion of nitrogen to ammonia : Nitrogen fixation : Oxidation of nitrite to nitrate : ........

Match the columns:
$I$ $II$
$(A)$ Magnesium $(i)$ Found in middle lamella
$(B)$ Sulphur $(ii)$ $A$ structural component of chlorophyll
$(C)$ Calcium $(iii)$ Required for enzyme activity
$(D)$ Iodine $(iv)$ Found in some amino acids
$(E)$ Manganese $(v)$ $A$ component of sugars
$(vi)$ Not important for plants

Which of the following organisms does not fix $N_2$?

Nitrates of soil are also leached deep into the earth by . . . . . . .

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

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