Main function of NaHCO3 and other salts in buccal cavity is to:
Correct answer: D. Both B and C
- A. Perform chemical digestion
- B. Stabilize the pH
- C. Act as promoter of ptyallin
- D. Both B and C
Explanation
NaHCO3 is bicarbonate which neutralizes the pH in acidic enviroment.
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About Digestion
The human digestive system covers the organs from mouth to anus, the movement of food, and the mechanical and chemical breakdown of carbohydrates, proteins and fats. It also includes the roles of digestive enzymes, bile, absorption through intestinal villi, and the assimilation of nutrients by body cells.
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