Darwinism : The Most Important Contribution of the Victorian Era. Charles Darwinâs revolutionary idea of evolution sparked dramatic debate in the scientific and, most especially, religious communities, as well as inspiring a new wave of thought in the minds of the world. There was also plenty of controversy, particularly from the many believers of creationism during the Victorian era.
1. Proteases Digestion of proteins is initiated by pepsin in the stomach, but the bulk of protein digestion is due to the pancreatic proteases. Several proteases are synthesized in the pancreas and secreted into the lumen of the small intestine.
Proteins are long chains of amino acids. The enzyme pepsin hydrolyzes proteins into fragments of various sizes called peptides; some amino acids are also produced in this manner. This indicated by the red reaction arrow. Protein Digestion in the Small Intestine Hydrolysis of peptides from the stomach continues by the action of three 'proteases' secreted (solid-headed arrows) in pancreatic juice. These 'proteases' are inactive until they reach the lumen of the small intestine; they are procarboxypeptidase, chymotrypsinogen, and trypsinogen.