At the ____phase of nitrogen cycle ammmonia is converted into nitrite and nitrate by the action of some bacteria.

Which one converts nitrite to nitrate?

Which of the following phase of nitrogen cycle psuedomonas is associated with

Certain bacteria living in the soil poor in oxygen convert nitrates into nitrites and then to free nitrogen and such bacteria are termed as Or The bacteria which convert NO_(3) rarr Free N_(2) are called as

In the fusion test of orgainc compounds, the nitrogen of an organic, compoud it converted to - sodium nitrate, sodium nitriete, sodium amide, sodium cyanide.

Bacteria that convert nitrates into free nitrogen are

Most of the plants obtain nitrogen from the soil in the form of 1. nitrites and molecular nitrogen 2. nitrates and ammonium salts 3. nitrites and ammonium salts 4. hyponitrites and nitrates

Select which of the following phase of Nitrogen cycle Pseudomonas is associated with-

Organisms which participate most actively in nitrogen cycle in nature are Saprophytic angiosperms Parasitic fungi Bacteria Cereals.

Which of the following statements about the nitrogen cycle are false ? 1. Rhizobium and Frankia cause nitrogen fixation in their independent free - living stage . 2. Azotobacter and Anabaena are anaerobic, symbiotic , free - living , nitrogen fixers. 3. Rhodospirillum is an aerobic , nitrogen -fixing microbe found in the root nodules of legumes . 4. Nitrobacter oxidizes nitrites to nitrates .

Bacteria which directly convert atmospheric nitrogen into nitrogen compounds are called