BIOMOLECULES AND ENZYMES

Detailed explanation-1: -An helix is generated when a single polypeptide chain twists around on itself to form a rigid cylinder. A hydrogen bond is made between every fourth peptide bond, linking the C=O. of one peptide bond to the N–H of another (see Figure 3-9A).

Detailed explanation-2: -When connected together by a series of peptide bonds, amino acids form a polypeptide, another word for protein.

Detailed explanation-3: -Quaternary structure results from folded amino-acid chains in tertiary structures interacting further with each other to give rise to a functional protein such as hemoglobin or DNA polymerase.

Detailed explanation-4: -Tertiary Structure of Proteins Tertiary structure refers to the overall folding of the entire polypeptide chain into a specific 3D shape. The tertiary structure of enzymes is often a compact, globular shape.