Sci228 Week 1 Ilab

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Date Submitted: 11/18/2012 10:16 AM

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Chemical Digestion

Mechanical Digestion

Propulsion: Propulsion is the process which we transfer our food from one place to the next. Much like an automobile factory, when one station is complete with their part, it is passed onto the next phase until completion. In the digestive system

Absorption: The actual process which comes after consumed food is broken down into is a liquid and is extracted from the GI (gastrointestinal tract). The GI tract is specifically designed for absorption with its folding shape and non-smooth surface. With this texture, the GI tract is able to trap and absorb the nutrients to help disperse either within the bloodstream or in the lymph.

Chemical Digestion: Chemical digestion is like an automated process which one element relies on another in order to continue. Saliva, being the first and possibly the smallest part of the chemical digestion process, creates enzymes which facilitate the continuing of the chemical breakdown to the stomach. Once the food reaches the stomach, and with the help of mechanical digestion, chyme is formed and the chemical digestion continues with the enzymes is a large part of this process.

Mechanical Digestion: Mechanical digestion happens throughout the digestive system in many ways like a wood chipper breaks down wood. Beginning in the mouth, we grind the food mechanically digesting the food using our saliva to moisten the food in order to be broken down into smaller parts. Also within the stomach we, food is furthermore broken down by a churning process, and the food is continued to be broken down within the small intestine.