Question

explain the importance of pH in everyday life for the following points: (1) pH in digestive system. (2) Decaying of teeth due to change in pH.​

Answer 1

Answer:

pH in digestive system is to measure the amount of acid present in our stomach and when the amount of acid increase that decay the our teeth.

Answer 2

Answer:

• The outer layer of teeth is made-up of hard substance enamel like calcium phosphate ( Ca3(PO4)2). It does not dissolve in water, but gets corroded when pH of inner side of mouth becomes less than 5.5.
• Acid is produced by decomposition of particles of food and saccharides(sugar) by bacteria inside the mouth after taking food; which is responsible for decay of teeth. Hence, good habit of cleaning mouth should be followed after eating.
• The toothpastes which are used for teeth cleaning possess basic nature. They neutralize the acid produced inside the mouth and prevent tooth decay.

Explanation: