Chapter 16, Problem 16.82AP

Interpretation Introduction

Interpretation:

Reason to administer insulin by injection, not by tablet has to be determined.

Concept Introduction:

Peptides are compounds that consist of amide linkage and formed when carboxylic acid group of one unit reacts with amino group of another unit of amino acid. The amide linkage is also therefore known as peptide linkage. Peptide linkage contains two terminals. One is $\text{N-terminal}$ that is $\text{α}$ carbon with free $-{\text{NH}}_3^{+}$. Another is $\text{C-terminal}$ that is $\text{α}$ carbon with free $-{\text{COO}}^{-}$. Structure of protein is divided into four levels as follows:

(1) Primary protein structure

(2) Secondary protein structure

(3) Tertiary protein structure

(4) Quaternary protein structure