Bio_1A_Lecture_15_Digestion

Bio_1A_Lecture_15_Digestion - A lim e n t a t io n ( D ig e...

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Food acquisition - behavioral adaptations Food ingestion - Food processing - Food absorption - mechanisms to take molecules into cells Alimentation (Digestion & Nutrition)
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Extra-cellular Digestion Food ingestion - adaptations Lion
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Food ingestion - morphological adaptations
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The Human Gastrointestinal (GI) Tract
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Swallowing Reflex The Swallowing Reflex Peristalsis: Peristaltic waves of contraction
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pepsinogen pepsin HCl (active enzyme) different cells secrete different products 2. HCl: strong acid; kills bacteria; denatures protein, activates pepsin 3. Pepsin: digestive enzyme that hydrolyzes protein (mucous cells secrete mucus) Parietal cells (secrete HCl) Chief cells (secrete proenzyme: pepsinogen) Gastric gland) Surface of stomach 1. Mucus: lubrication
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This note was uploaded on 10/29/2009 for the course BIO biology taught by Professor Meighan during the Fall '09 term at Berkeley.

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Bio_1A_Lecture_15_Digestion - A lim e n t a t io n ( D ig e...

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