Which vitamin is designated by the name cyanocobalamin?

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Enhance your knowledge with the Ciulla Clinical Chemistry Test. Study with interactive quizzes, featuring flashcards and multiple-choice questions. Each question offers hints and explanations for better understanding. Prepare effectively and excel in your exam!

Multiple Choice

Which vitamin is designated by the name cyanocobalamin?

Explanation:
Cyanocobalamin is a form of vitamin B12. The name comes from its chemical structure, which includes a cobalt atom (cobalamin) and a cyanide group attached to it (cyanocobalamin). In supplements and fortified foods, this is a common, stable form of B12. In the body, cyanocobalamin is converted to the active coenzyme forms, methylcobalamin and adenosylcobalamin, which are essential for DNA synthesis and proper nerve function. The other vitamins listed—A, B2, and D—do not have this cobalt-containing cyanocobalamin form.

Cyanocobalamin is a form of vitamin B12. The name comes from its chemical structure, which includes a cobalt atom (cobalamin) and a cyanide group attached to it (cyanocobalamin). In supplements and fortified foods, this is a common, stable form of B12. In the body, cyanocobalamin is converted to the active coenzyme forms, methylcobalamin and adenosylcobalamin, which are essential for DNA synthesis and proper nerve function. The other vitamins listed—A, B2, and D—do not have this cobalt-containing cyanocobalamin form.

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