MCQ Detailed View

Riboflavin, also known as Vitamin B-2, is a water-soluble vitamin that plays a vital role in energy metabolism and the functioning of the human body. It is an essential component of coenzymes like FAD (flavin adenine dinucleotide) and FMN (flavin mononucleotide), which are involved in the oxidation-reduction reactions necessary for converting carbohydrates, fats, and proteins into energy.

Vitamin B-2 is important for cellular growth, repair, and overall metabolism. It also helps maintain healthy skin, eyes, and nervous system function. A deficiency in Riboflavin can lead to symptoms such as cracks at the corners of the mouth (cheilosis), sore throat, skin disorders, and fatigue.

Good dietary sources of Riboflavin include milk, eggs, green leafy vegetables, almonds, and fortified cereals. Unlike fat-soluble vitamins, excess Riboflavin is generally excreted in urine, making it relatively safe, although a balanced intake is recommended to support normal metabolism.

It is important to differentiate Riboflavin (Vitamin B-2) from other B-complex vitamins:

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

  
  


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  Vitamin B-3 (Niacin): Supports energy metabolism and DNA repair.

  
  


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  Vitamin B-6 (Pyridoxine): Important for amino acid metabolism and neurotransmitter synthesis.

  
  

Understanding Vitamin B-2 is fundamental in biology and nutrition, as it illustrates how vitamins act as coenzymes to support metabolic processes and energy production. Knowledge of Riboflavin helps students understand the connection between diet, cellular function, and overall health.