Final - Tom Marler Final Exam Biology 108 Oct 3 2009 1...

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Tom Marler Final Exam Biology 108 Oct. 3, 2009 1. Digestion is an important process in the human body. a) Identify the enzymes involved in the digestion of stratch, proteins and lipids. b) Identify the gland or organ that produces each of these enzymes. c) In what part of the digestive system are these enzymes active? (i.e stomach, small intestine, etc). Digestion starts in the mouth, teeth chew the food and the saliva glands produce a salivary amylase to help digest starches. Once the food is ready to be swallowed the tongue forms the food into a bolus for swallowing. During this process the soft palate blocks the opening to the nose and the epiglottis cover the trachea. Food enters the esophagus and peristalsis starts moving the food down into the stomach. In the stomach food mixes with the acidic gastric juices that contain pepsin which aid in the breakdown of protein. Also while in the stomach food is turned into a soupy like substance called chyme. The movement of chyme is controlled by the pyloric sphincter which squirts a little at a time in the small intestine. The small intestine is able to break down carbs, proteins and fats from the enzymes secreted by accessory organs. Small intestine
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Final - Tom Marler Final Exam Biology 108 Oct 3 2009 1...

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