Home » A lubricant, mucin in saliva is made up of Digestive System MCQs A lubricant, mucin in saliva is made up of February 8, 2022 0 Views Q. A lubricant, mucin in saliva is made up of A. Glycoprotein B. Polysaccharides C. Phospholipids D. Myosin Answer: Glycoprotein