Question

using protein digestion and chymotrypsin, describe how enzymes act as catalysts

Answer 1

Enzymes have active sites/ pockets wherein substarte binding occurs. This leads to the formation of Enzyme-Substarte complex which breaks down into final product. They work only with the shape intact, pH and temperature well maintained.
Taking the example of Chymotrypsin, it is site specific and cleaves the carboxyl side of large hydrophobic chains such as phenylalanine (Phe), methionine (Met), tyrosine (Tyr), and tryptophan (Trp), unless the next amino acid is proline.