Question

Total number of essential amino acid among the given list of amino acids is _______.
Arginine, Phenylalanine, Aspartic acid, Cysteine, Histidine, Valine, Proline

Answer 1

Step 1: Identify essential amino acids

Essential amino acids are those that cannot be synthesized by the human body and must be obtained from the diet. From the given list:

1. Arginine - Essential.
2. Phenylalanine - Essential.
3. Histidine - Essential.
4. Valine - Essential.
5. Aspartic acid, Cysteine, and Proline are non-essential.

Step 2: Count essential amino acids

Essential amino acids in the list = 4.

Final Answer: 4.