<prompt> Goblet cells secreteHCIPepsinMucusSerolonin  <response>: Apa from comprising the epithelial lining of various organs, production of large glycoproteins and carbohydrates, the most impoant function of goblet cells is the secretion of mucus. This mucus is a gel-like substance that is composed mainly of mucins, glycoproteins, and carbohydrates.Ref: 