To break down food into smaller particles to increase the surface area for chemical digestion.​

Answers

• Réponse publiée par: alexespinosa

  Chewing breaks the large into the small. The mechanical digestion of food in the mouth involves converting bite-sized pieces of food into smaller particles. This has the effect of increasing the surface area of the food particles and allowing saliva to be thoroughly mixed with them.

  Explanation:
• Réponse publiée par: Laurenjayshree

  answer is Mechanical Digestion.
• Réponse publiée par: tayis

  answer is Mechanical Digestion. 
• Réponse publiée par: kirbydimaranan

  The purpose of mouth is to break down food into smaller particles to increase the surface area for chemical digestion.