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

Question

Assertion: Ammonia is converted into nitrate by soil bacteria like Nitrosomonas and Nitrobacter. Reason: These nitrifying bacteria are photoautotrophs. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

Ammonia is first oxidised to nitrite by the bacteria Nitrosomonas and/or Nitrosococcus. The nitrite is further oxidised to nitrate with the help of the bacteria Nitrobacter, and/or Nitrocystis. These steps are called nitrification. These nitrifying bacteria are chemoautotrophs.

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

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

Ammonia is first oxidised to nitrite by the bacteria Nitrosomonas and/or Nitrosococcus. The nitrite is further oxidised to nitrate with the help of the bacteria Nitrobacter, and/or Nitrocystis. These steps are called nitrification. These nitrifying bacteria are chemoautotrophs.

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