How are most of the non-essential amino acids synthesized in the body?

• A. Through the breakdown of essential amino acids
• B. By direct absorption from dietary sources
• C. Through transamination of other amino acids
• D. By conversion of fatty acids

Answer: (C)

Verified step by step guidance

1. Understand the concept of non-essential amino acids: These are amino acids that the body can synthesize on its own, unlike essential amino acids which must be obtained from the diet.
2. Learn about transamination: This is a key process in amino acid metabolism where an amino group is transferred from one amino acid to a keto acid, forming a new amino acid.
3. Identify the role of enzymes: Transaminases or aminotransferases are enzymes that facilitate the transamination process, allowing the conversion of amino acids.
4. Recognize the importance of the amino acid pool: The body maintains a pool of amino acids that can be used for various metabolic processes, including the synthesis of non-essential amino acids.
5. Explore the metabolic pathways: Understand how different amino acids can be interconverted through transamination, contributing to the synthesis of non-essential amino acids from other available amino acids.