Question

_____ are essential in the conversation of nitrogen-containing compounds to nitrogen forms that are accessible and usable by plants. A. bacteria decomposersB. autotrophsC. heterotrophsD. chemotrophs

Answer 1

B - Autotrophs

Step-by-step explanation

Nitrogen is converted from atmospheric nitrogen (N2) into usable forms, such as NO2-, in a process known as fixation. The majority of nitrogen is fixed by bacteria, most of which are symbiotic with plants. Recently fixed ammonia is then converted to biologically useful forms by specialized bacteria.

Nitrification is the conversion of ammonia (NH3) to nitrate (NO3–). It is usually performed by soil living bacteria, such as nitrobacter. This is important because plants can assimilate nitrate into their tissues, and they rely on bacteria to convert it from ammonia to a usable form. Nitrification is performed mainly by the genus of bacteria, Nitrobacter.

Nitrosomonas and Nitrobacter are chemosynthetic autotrophs