Question

A lubricant mucin in saliva is made up of

• A. Polyunsaturated facts
• B. Actin and myosin
• C. Glycoproteins
• D. Phospholipids

Answer 1

Answer: (C)

Glycoproteins

Mucin is the hydrated form of mucinogen, a secretion containing carbohydrate-rich glycoproteins such as those from the goblet cells of the intestine, the submaxillary glands, and other mucous glandular cells; it is also present in the ground substance of connective tissue, especially mucous connective tissue, is soluble in alkaline water, and is precipitated by acetic acid; mucins lubricate and protect body cavity linings.

Therefore, the correct answer is option C.