Fe(3+) + Fe(II)-[cytochrome c] = Fe(2+) + Fe(III)-[cytochrome c]
fe(3+) + fe(ii)-[cytochrome c] = fe(2+) + fe(iii)-[cytochrome c]
Fe(3+) + Fe(II)-[cytochrome c] = Fe(2+) + Fe(III)-[cytochrome c]
fe(3+) + fe(ii)-[cytochrome c] = fe(2+) + fe(iii)-[cytochrome c]