In 1989, the Griswold family wasn't so lucky in National Lampoon's Christmas Vacation, the third movie in a franchise that included 1983's inaugural Vacation, 1985's European Vacation and 1997's Vegas Vacation..
1 Pepsin is a protease that begins digestion of proteins, breaking them into peptides and amino acids. 2  Pepsinogen, is secreted by gastric glands of the stomach into the stomach. 3  There, in the acid environment of the stomach, pepsinogen is converted into pepsin.
Pepsin is an enzyme which is secreted by Zymogen cells of  the stomach. First it is secreted in an inactive form called  Pepsinogen. After that Hydrochloric acid (HCl) activ â¦ ates it  into pepsin.FUNCTION:   Its function is to hydrolyse the proteins to yield peptide.epsin breaks down proteins into peptides and is found in the stomach, its secreted from the gastric glands found in the lining of the stomach. + 2 others found this useful.