Answer to Question #5884 in Biochemistry for Joe

Question

What happens when you eat a hamburger

Answer 1

First, a hamburger is chewed in the oral cavity, where the carbohydrates are
hydrolysed by alfa-amilasa. In the stomach proteins are decomposed by pepsin in
the acid medium. Futher, nucleic acids, some carbohydrates and especially lipids
are digested by enteropeptidases, nuceases, lipases and other enzymes, which are
produced in the pancreas and the small intestine. After that, on the
microvilluses of the small intestine generated monomers (aminoacids, glucose
etc.) are transported actively or passively through the intestine cells'
memranes for the following methabolic pathways (glycolysis, Krebs cycle,
lipogenesis etc.). There is a lipids emulsification in the duodenum by
bile. From the intestine cells biomonomers are transported to the bloodstream
besides the lipids, which are transformed into the chylomicrons and go to other
organs with a lymph flowing. Water and some microelements are absorbed in the
large intestine, whereas dejection is also formed.