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Formation of Curd

During nitrif...

Question

During nitrification, which bacteria convert ammonia to nitrate?

A

Nitrobacter

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B

Nitrosomonas

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C

Mycobacterium

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D

Pseudomonas

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Solution

The correct option is B
Nitrosomonas

Nitrosomonas convert ammonia to nitrate during the process of nitrification in biological nitrogen fixation. It is performed in two steps - nitrite formation and nitrate formation.

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Q. Match the lists

	I		II
(a)	Nitrosomonas	$(1)$	Denitrifying bacteria
(b)	Nitrobacter	$(2)$	Soil bacteria
(c)	Pseudomonas	$(3)$	Nitrate bacteria
(d)	Azotobacter	$(4)$	Nitrite bacteria

Q. Assertion :Ammonia is converted into nitrate by soil bacteria like Nitrosomonas and Nitrobacter Reason: These nitrifying bacteria are photoautotrophs.

Match Column-I with Column-ll and select the correct option from the codes given below.

Column – I Column – ll

A. Nitrosomonas (i) Ammonia to nitrite

B. Nitrobacter (ii) Nitrite to nitrate

C. Pseudomonas (iii) Nitrate to N2

Match Column-I with Column-ll and select the correct option from the codes given below.

Column – I Column – ll

A. Nitrosomonas (i) Ammonia to nitrite

B. Nitrobacter (ii) Nitrite to nitrate

C. Pseudomonas (iii) Nitrate to N2

Q. Nitrosomonas and Nitrobacter convert

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