MCQ Detailed View

Cobalamin, commonly known as Vitamin B-12, is a water-soluble vitamin that is essential for the production of red blood cells, proper nerve function, and DNA synthesis. It is a unique vitamin because it contains cobalt in its structure, which is why it is named “Cobalamin.” Vitamin B-12 plays a crucial role in cell division and neurological health, making it vital for growth, development, and overall metabolism.

Vitamin B-12 is primarily found in animal-based foods, including meat, fish, eggs, and dairy products. People who follow strict vegetarian or vegan diets may require supplementation to prevent deficiency. A lack of Vitamin B-12 can lead to megaloblastic anemia, characterized by the production of abnormally large red blood cells, as well as nerve damage, fatigue, and neurological issues.

It is important to distinguish Vitamin B-12 (Cobalamin) from other B-complex vitamins:

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  Vitamin B-1 (Thiamine): Supports carbohydrate metabolism and nerve function.

  
  


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  Vitamin B-3 (Niacin): Helps in energy production and DNA repair.

  
  


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  Vitamin B-9 (Folate/ Folic Acid): Essential for red blood cell formation and cell division, but chemically distinct from B-12.

  
  

Understanding Vitamin B-12 is fundamental in biology and nutrition, as it highlights how vitamins contribute to hematological health and nervous system integrity. Knowledge of Cobalamin helps students understand the importance of diet, metabolism, and supplementation in maintaining overall health.

Vitamin B-12 also has practical applications in medicine, where it is used to treat anemia and neurological disorders. Studying Cobalamin demonstrates the critical role vitamins play in human physiology, metabolic processes, and disease prevention.