6. When food is put in our mouth, the teeth cut, chew and grind it. The glands A
present in mouth secrete a watery liquid B which helps to digest component C
present in the food partially. This partially digested food then passes through tube
D into and organ E. The inner walls of organ E secrete mucus , hydrochloric acid
and digestive juices.
i)
What are A, B, C, D and E?
ii) Name the component of food which is broken down by the digestive juices
secreted E.
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The extensive chemical process of digestion begins in the mouth. As food is chewed, saliva, produced by the salivary glands, mixes with the food. Saliva is a watery substance produced in the mouths of many animals. There are three major glands that secrete saliva: the parotid, the submandibular, and the sublingual.
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