Part A ) Multipule Choice 1) Oxidation of N2 gas to NH3 is known as: A.Anammox.
ID: 255303 • Letter: P
Question
Part A ) Multipule Choice
1) Oxidation of N2 gas to NH3 is known as:
A.Anammox. B.Ammonification C.Assimilation D.Nitrogen fixation
2) Iron is among the most abundant element in the Earth's crust, yet it can be a growth limiting nutrient for microbes. _______________ produced by aerobic bacteria can solubilize Fe3+ to transport iron into the cell.
A.Ferritin B.Magnetosomes C.Siderophores. D.Phosphonatases
3) One of the best understood biological systems for detoxifying organometallic or inorganic compounds involves the _____ __________, which catalyzes the two-electron reduction of Hg2+ to volatile, low-toxicity Hg0.
A. mer operon. B.tm7 operon. C.mih12 operon D.cellular detoxification
Explanation / Answer
1.
Oxidation of N2 gas to NH3 is known as nitrogen fixation
2.
Iron is among the most abundant element in the earth's crust. yet it can be a growth limiting
nutrient for microbes. Siderophores produced by aerobic bacteria can solubilize Fe3+ to
transport iron into the cell.
Option c is the answer