Probably the most famous Hooverville was the one founded on Anacostia Flats, just outside Washington, D.C., in 1932. Thousands of World War I veterans, calling themselves the Bonus Army, had arrived in the nation's capital to demand early payment of a bonus they had been promised at the end of the war.
amphipatic compounds (both hydrophilic/hydrophobic) synthesized in liver & secreted by gallbladder into intestinal lumen to emulsify fats in the intestine bile salts gut hormone secreted by intestinal cells when stomach content enters the intestine; stimulates contraction of gallbladder, release of bile acids & secretion of pancreatic enzymes
Bile salts. Bile salts emulsify lipids to increase their surface area for pancreatic lipase enzyme action in water - it can only act at the oil/water interface so splitting into small drops in suspension (emulsifying) and stabilising the lipid throughout the water solution increases this surface area contact.