Cobalt is a constituent of

Question

Question

This question was previously asked in

ISRO Pharmacist Previous Year Question paper 2017

Answer 1

Correct Answer: Vitamin B12

Rationale:

Vitamin B12, also known as cobalamin, is a water-soluble vitamin that contains the element cobalt. It plays a crucial role in the normal functioning of the brain and nervous system, as well as in the formation of red blood cells.
Cobalt is an essential component of Vitamin B12, and it is the presence of this metal that gives the vitamin its chemical name, cobalamin.
Vitamin B12 is vital for DNA synthesis and regulation, fatty acid synthesis, and energy production. Deficiency in Vitamin B12 can lead to serious health issues such as pernicious anemia and neurological disorders.

Explanation of Other Options:

Folic acid

Rationale: Folic acid, also known as Vitamin B9, is a water-soluble vitamin that is crucial for DNA synthesis and repair, as well as cell division and growth. It does not contain cobalt as part of its structure.

Niacin

Rationale: Niacin, or Vitamin B3, is another water-soluble vitamin that is essential for the metabolism of carbohydrates, fats, and proteins. It is also important for maintaining healthy skin and nerves. Niacin does not contain cobalt.

Biotin

Rationale: Biotin, or Vitamin B7, is a water-soluble vitamin that acts as a coenzyme in the metabolism of fatty acids, amino acids, and glucose. It is crucial for maintaining healthy skin, hair, and nails. Biotin does not contain cobalt.

Conclusion:

Among the given options, Vitamin B12 is the only vitamin that contains cobalt. This unique characteristic is essential for its biological functions, including DNA synthesis and nervous system maintenance.

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