A: Ammonia is oxidized first to nitrite and t | vedclass

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(D) The Assertion is incorrect because the process of nitrification involves the oxidation of ammonia $(NH_3)$ to nitrite $(NO_2^-)$ by $Nitrosomonas$

Vedclass · Accepted Answer

Both Assertion and Reason are incorrect.

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(D) The Assertion is incorrect because the process of nitrification involves the oxidation of ammonia $(NH_3)$ to nitrite $(NO_2^-)$ by $Nitrosomonas$ and $Nitrococcus$,and then nitrite is oxidized to nitrate $(NO_3^-)$ by $Nitrobacter$. The statement in the Assertion reverses the order of products.The Reason is also incorrect because plants primarily absorb nitrogen in the form of nitrate $(NO_3^-)$ or ammonium $(NH_4^+)$ through their roots,not through their leaves. Once absorbed,nitrate is transported to the leaves where it is reduced back to ammonia to be incorporated into amino acids.

$A$: Ammonia is oxidized first to nitrite and then to nitrate by the action of $Nitrosomonas$ and $Nitrobacter$ respectively.
$R$: Nitrite thus formed is absorbed by leaves.

Similar Questions

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Reaction carried out by $N_{2}$ metabolising microbes include:
$I.$ $2 NH_{3} + 3 O_{2} \rightarrow 2 NO_{2}^{-} + 2 H^{+} + 2 H_{2} O$
$II.$ $2 NO_{2}^{-} + O_{2} \rightarrow 2 NO_{3}^{-}$
Which of the following statements about these equations is not true?

Decomposition of organic nitrogen of dead plants and animals into ammonia is called.

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$A$: Ammonia is oxidized first to nitrite and then to nitrate by the action of $Nitrosomonas$ and $Nitrobacter$ respectively.$R$: Nitrite thus formed is absorbed by leaves.