Question

The number of amino acids found in proteins that a human body can synthesize is:
(A) 12
(B) 10
(C) 11
(D) 14

Answer 1

Amino acids can be categorized into essential and non-essential amino acids totally based on the synthesis of those amino acids in the body. There are many amino acids which cannot be synthesized by the human body and therefore we must include those amino acids in our diet.

Complete step by step solution:
Let’s understand what amino acids are: Amino acids can be described as the group of the organic molecule which contains an acidic hydroxyl group –COOH, and a basic amino group -$N{{H}_{2}}$ and an organic R group which is unique for each amino acid. Through the polymerization of amino acids with the formation of the peptide bond leads to the formation of a peptide bond which means that the proteins are formed. There are twenty amino acids and out of these 20 amino acids 11 amino acids are synthesized by the human body and the rest 9 amino acids cannot be synthesized by the human body and we must include these amino acids in our diet. The 11 amino acids which can be synthesized by human body are:
Alanine, Aspartic acid, Glycine, Asparagine, Serine, Proline, Glutamic acid, Arginine, Glutamine, Cysteine, Tyrosine .

Hence the correct answer is option is (C).

Note: It should be noted that other than essential and non-essential amino acids there is another class of amino acids which is known as conditionally essential amino acids. Under specific conditions these amino acids become essential for the body. For example – when we suffer from a dangerous disease the body cannot produce non essential amino acids so at that time it should be included in the diet.