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

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Question

(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.

Column-$I$	Column-$II$
$(a)$ Free living aerobic nitrogen fixer	$(1)$ Frankia
$(b)$ Denitrification	$(2)$ Anabaena
$(c)$ Free living anaerobic nitrogen fixer	$(3)$ Thiobacillus
$(d)$ Symbionts	$(4)$ Beijerinckia

$A$: 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

Match the following:
Column-$I$ Column-$II$
$(a)$ Free living aerobic nitrogen fixer $(1)$ Frankia
$(b)$ Denitrification $(2)$ Anabaena
$(c)$ Free living anaerobic nitrogen fixer $(3)$ Thiobacillus
$(d)$ Symbionts $(4)$ Beijerinckia

Thiobacillus is a group of bacteria helpful in carrying out

Which two distinct microbial processes are responsible for the release of fixed nitrogen as dinitrogen gas $(N_2)$ to the atmosphere?

Which bacteria convert ammonium salts into nitrite?

Which of the following is true for nitrogen fixation?

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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.