question_answer

Direction (6 - 10): Amino acids are building blocks of protein. More than 500 amino acids have been described, but only 20 amino acids take part in protein synthesis. Amino acids are necessary for protein synthesis and have various functions in the body. It is necessary to take them in the diet because their deficiency results in decrease formation of protein or protein is not formed as a result protein deficiency may occur. It is concluded that amino acids play important role in our body.

(Reference : Akram, Muhammad & Asif, Muhammad & Uzair, Muhmmad & Naveed, Akhtar & Madni, Muhammad Asadullah & All Shah, Dr Syed & Hasan, Zahoor & Khan, Asmat (2011). Amino acids : A review article. Journal of Medicinal Plants Research 5. 3997- 4000.)

In proteins, a-amino acids are joined together by:

A) phosphodiester linkage

B) glycosidic linkage

C) peptide linkage

D) hydrogen bonding.