Among the following, the biomolecule with a direct metal-carbon bond is · ABC26IN0561
Subject: Inorganic Chemistry · Chapter: Bioinorganic Chemistry · Topic: Bioinorganic – General · Exam: JAM 2005-2022 · Marks: 2 · Difficulty: Medium
Among the following, the biomolecule with a direct metal-carbon bond is
(a)coenzyme $\mathrm{B}_{12}$
(b)nitrogenase
(c)chlorophyll
(d)hemoglobin
Answer
Answer: A ✓ checked by 4AB · confidence high
The source book printed no answer; this one was worked out and checked — see the explanation.
Explanation
Reduction of vitamin B₁₂ to the Co(I) form B₁₂s and reaction with ATP forms the Co–C bond to the 5′-deoxyadenosyl group: coenzyme B₁₂ (adenosylcobalamin).