Question

Vitamin B12 is also known as _________.

• A. Methyl Cobalamin
• B. Thiamin
• C. Pantothenic acid
• D. Biotin

Hint:

- Vitamin B1 = Thiamin
- Vitamin B2 = Riboflavin
- Vitamin B3 = Niacin
- Vitamin B5 = Pantothenic acid
- Vitamin B12 = Cobalamin Methyl Cobalamin (the only vitamin containing a metallic element, Cobalt).

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Vitamins are organic compounds required in small quantities for various essential metabolic processes within living organisms.
Water-soluble B-complex vitamins act primarily as coenzymes in biochemical pathways.

Step 2: Detailed Explanation:
Let us identify the chemical names of the vitamins listed in the options:
- Methyl Cobalamin (Vitamin B12):
Cobalamin is a complex water-soluble vitamin containing a cobalt ion at the center of a corrin ring.
Its active coenzyme forms in human and animal metabolism are Methylcobalamin and Adenosylcobalamin.
Therefore, Vitamin B12 is also known as Methyl Cobalamin.
- Thiamin (Vitamin B1):
Crucial for carbohydrate metabolism as thiamin pyrophosphate (TPP).
- Pantothenic acid (Vitamin B5):
An essential component for the synthesis of Coenzyme A (CoA).
- Biotin (Vitamin B7):
Serves as a vital coenzyme for carboxylase enzymes in fatty acid synthesis and gluconeogenesis.

Step 3: Final Answer:
Vitamin B12 is also known as Methyl Cobalamin (Option A).