In the oral cavity the main function of sodium bicarbonate is:
Correct answer: B. To stabilize the pH of food
- A. To act as antiseptic
- B. To stabilize the pH of food
- C. To act as lubricant
- D. To make a slimy food
Explanation
Sodium bicarbonate (NaHCO3) is present in saliva. It acts as a mild antiseptic but its major function is to stabilize the pH of the food that we eat. It doesn't have any direct lubricating effect but it has a cleansing action.
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