Best Answer: Membrane proteins can be divided into several categories: Integral membrane proteins which are permanently bound to the lipid bilayer. Peripheral membrane proteins that are temporarily associated with lipid bilayer or with integral membrane proteins. Lipid-anchored proteins bound to lipid bilayer bound through lipidated amino acid residues.
When one or more of these glands is infected, it is called parotitis. Submandibular glands are located on each side of your jaw below the jawbone. Sublingual glands sit on the bottom of your mouth under your tongue. Additionally, hundreds of small (minor) salivary glands deposit saliva from ducts around your mouth.
The sublingual glands are a pair of major salivary glands located inferior to the tongue, anterior to the submandibular glands. The secretion produced is mainly mucous in nature, however it is categorized as a mixed gland.