Question

Cobalt containing porphyrin ring is found in the structure of
(A) Haemoglobin
(C) Chlorophyll
(B) Cytochrome
(D) Vitamin B-12​

Answer 1

cobalt containing porphyrin ring is found in the structure of cytochrome.

Answer 2

Answer: The answer is vitamin B12.

The structure of vitamin B12 is in the attachment you can see it.

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