snare drum definition. A shallow cylindrical drum, with wires or pieces of catgut (snares) stretched across the bottom skin to give a sharp, rattling sound when the top skin is struck. Snare drums are used in orchestras and in nearly all kinds of bands. Discover our greatest slideshows.
Although some mucins are membrane-bound due to the presence of a hydrophobic membrane-spanning domain that favors retention in the plasma membrane, most mucins are secreted onto mucosal surfaces or secreted to become a component of saliva.ature mucins are composed of two distinct regions: 1  The amino-and carboxy-terminal regions are very lightly glycosylated, but rich in cysteines. 2  A large central region formed of multiple tandem repeats of 10 to 80 residue sequences in which up to half of the amino acids are serine or threonine.
It means digestion using enzym to decompose protein and amylum (polymer) to be its monomer while physical digestion using muscle. In humans, digestion begins in the oral cavity where food is chewed. Saliva is secreted in large amounts (1-1.5 litres/day) by three pairs of exocrine salivary glands (parotid, submandibular, and sublingual) in the oral cavity, and is mixed with the chewed food by the tongue. There are two types of saliva.