The corrin ring is very similar to a heme, but the corrin ring containing vitamin B₁₂has a cobalt ion rather than an iron ion as in heme.

Name: The corrin ring is very similar to a heme, but the corrin ring containing vitamin B 12 has a cobalt ion rather than an iron ion as in heme.
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Question

Quizplus · Accepted Answer

The corrin ring in vitamin B12 contains a cobalt ion, whereas the heme group contains an iron ion. Both structures are similar in that they are macrocyclic, but they differ in the central metal ion.

The Corrin Ring Is Very Similar to a Heme, but the Corrin