Microbiology and Nitrogen Cycle

These grow at a temperature range of 78 to 95 degree Celsius and a pH range of 2.5 to 6.

Pseudomonas putida is a genetically engineered bacterium widely recognized for its ability to degrade hydrocarbons, making it useful for bioremediation in oil spill cleanup.

Correct option

Yes, it is the correct answer.

Nostoc can fix atmospheric nitrogen and is used as inoculations for paddy crops grown both under upland and lowland conditions.

This is the correct option as nitrosomonas play the role of nitrification in the nitrogen cycle, i.e. convert ammonia into nitrites and then into nitrates.

This is the correct option. The conversion of nitrate salts into free nitrogen gas is called denitrification.

The transformation of atmospheric nitrogen into a usable form is known as nitrogen fixation.

These include proteases, collagenases and hyaluronidases. For example, Clostridium perfringens produces a potent collagenase, whilst Staphylococcus aureus produces a hyaluronidase.

Bifidobacteria are described as friendly bacteria. They are a probiotic.

Yes, it is correct. Ehrlichiosis and anaplasmosis are rickettsial tickborne diseases.

This is the correct option. Rhizobium, a bacteria, converts atmospheric nitrogen into a soluble form. They live in the roots of legumes, such as gram, peas, etc.

This is the correct option. Mushroom is a saprotroph as it gets its nutrients in solution form from the dead and decaying matter.

Rhizobium bacteria in the soil cannot make its own food, but can convert atmospheric nitrogen into a soluble form for leguminous plant, which in return provides shelter and food to it.

Yes, it is correct. Bacillus: Endospore forming microbes Sporosarcina: Endospore forming microbes