The coordinated nitrogen atoms in the heme prosthetic group have _____ character, which prevents conversion of the heme iron from the _____ state to the _____ state A) electron-donating; Fe²⁺; Fe³⁺ B) electron-donating; Fe³⁺; Fe²⁺ C) electron-accepting; Fe²⁺; Fe³⁺ D) electron-accepting; Fe³⁺; Fe²⁺ E) electron-accepting; Fe⁺; Fe⁰

Question

Quizplus · Accepted Answer

The coordinated nitrogen atoms in the heme prosthetic group have electron-donating character, which stabilizes the iron in the Fe(II) state and prevents its oxidation to the Fe(III) state.

The Coordinated Nitrogen Atoms in the Heme Prosthetic Group Have