BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Collagen fibers form the extracellular framework of all tissues and are essential for tensile strength. The collagen molecules in these fibers are synthesized as larger precursor proteins, known as procollagens, from which large propeptide domains are enzymatically cleaved en bloc.

Detailed explanation-2: -Collagen is composed of 3 chains. The chains are wound together to form a triple helix. Since glycine is the smallest of all the amino acids, it allows the chain to form a tight configuration, and and it can withstand stress.

Detailed explanation-3: -A number of recent studies on tensile mechanical properties of individual collagen fibrils report modulus values ranging from 0.2 to 0.86 GPa for hydrated fibrils (16–18).