3) The standard reduction potentials (E) for the following half reactions are gi

Question

3) The standard reduction potentials (E) for the following half reactions are given in the attached tables NOS + 2H+ + 2e- NO2-+ H2O FAD + 2H+ + 2e- FADH2 If you mixed nitrate (NO3), nitrite (NO2), FAD, and FADH2 together, all at 1 M concentrations and in the presence of the appropriate enzyme catalyst, what would happen initially to each of the reactants? (circle one option per pair for the 4 pairs below) or decreases increases or decreases increases or decreases D) FADH2 concentration increases or decreases A) NO3 concentration B) FAD concentration C) NO2 concentration increases

Explanation / Answer

Since during the reaction , NO3- is consumed, NO3- gets reduced. FAD gets consumed and hence its concentration also decreases. NO2- and FADH2 are formed and their concentration increases.

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