N2 is fixed by microbes

What will be an ideal response?


•Needed by all organisms for basic cellular processes: ~80% of air is gaseous nitrogen.
-But atmospheric form, N2, is very stable.
•To be assimilated, N2 gas must be converted to ammonia (NH3/NH4+).

N2 + 8H+ + 8e- + 16 ATP ? 2 NH3 + H2 + 16 ADP + 16 Pi
•NH4+ is then assimilated by microbes and plants to form amino acids (e.g. glutamate

Biology & Microbiology

You might also like to view...

Which of the following is/are characteristic of ALL cellular organisms?

A) communication B) evolution C) motility D) communication, evolution, and motility

Biology & Microbiology

Which event will not occur during the fall overturn? a. There is a brief burst of primary production

b. Nutrient rich water moves upward. c. Nutrients come to the surface of the water. d. Oxygen rich water will move upwards. e. The thermocline disappears.

Biology & Microbiology

Hox genes have been identified in all bilaterally symmetric animal groups

____________________ Indicate whether the statement is true or false.

Biology & Microbiology

The smallest subatomic particle is the ________.

A. proton B. electron C. neutron D. ion E. isotope

Biology & Microbiology