The term mechanical digestion refers to the physical breakdown of large pieces of food into smaller pieces which can subsequently be accessed by digestive enzymes. In chemical digestion, enzymes break down food into the small molecules the body can use.igestion begins in the mouth with the secretion of saliva and its digestive enzymes. Food is formed into a bolus by the mechanical mastication and swallowed into the esophagus from where it enters the stomach through the action of peristalsis.
The stigma is generally in the center of the flower and stands up on the style, taller than the surrounding anthers. It usually has a gelatinous or visceral appearance, which is slightly damp and furry.
Best Answer: The pistil's function is reproduction. The stigma, the head of the pistil, provides a place for pollen grains to land and germinate.The style, the long part of the pistil, provides protection for the pollen tube that emerges from the pollen grain and grows down the inside of the pistil into the ovary.t is the female portion of the plant. So you must take a look at the three things that make up the pistill (otherwise known as carpel) and determine their function. 1. Stigma-Sticky portion at the top of the style where the pollen grains land on and germinate into a pollen tube.