In chemical digestion, enzymes break down food into the small molecules the body can use. I’m the human digestive system, foo enters the mouth and mechanical digestion of the food starts by action of mastication (chewing), a form of mechanical digestion, and the wetting contact of saliva.
Explanation: Saturated fatty acids have single carbon-to-carbon bonds. Therefore, saturated fatty acids have straight structures while unsaturated fatty acids have bent structures. Saturated fatty acids are solid at room temperature and unsaturated fatty acids are liquid at room temperature.
Tetanus does not refer to the shape of a bacterium
<span>Starch are macromolecules that are made of monomers that are simple sugars. Cells are microscopic and they can only absorb small substances. Therefore starch needs to be digested in other words broken down into simpler substances that can be taken in by cells. Therefore before starch can enter a cell it must be 3) digested to form simple sugars</span>