on calcium supplementation in pregnant women confirms this and also points out a possible protective effect of calcium on the prevention of preterm birth among those women who consumed between 1.5 g and 2.0 g of calcium per day (8). Daily iron and
Both mechanical and chemical. Chewing, also called mastication, is using your teeth with the help of your tongue to break down food into smaller particles, and the other a chemical process where salivary amylase which is a digestive enzyme that helps break down carbohydrates. 1 person found this useful.
THE PATH OF DIGESTION. Mouth: Mechanical and chemical digestion begin in the mouth where food is chewed. The glands that act first are in the mouththe salivary glands. Saliva produced by these glands contains an enzyme called ptyalin that begins to digest the starch from food into smaller molecules (maltose).