Nutrition Note 02

Nutrition Note 02 - pepsinogen Today's topic by salivary...

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by salivary glands trients, attract to carbohydrates and salt pepsinogen pH pepsin (active) erocytes (absorptive)cells) Today’s topic: o intro o GI track o absorption o regulation - Discussion sections start on Monday 3 Primary functions of the GI track 1. hydrolysis 2. absorption of nutrients 3. elimination of waste 6. Main Parts of the GI Track 1. mouth maceration - soften by soaking muscles of mastication - to grind/chew 1. temporails 2. masseter TMJ - Capsule of Temporomandibular Joint salivary amylase - carbohydrate digestion saliva (mucus) - lubrication lysozyme - sterilize (kill bacteria) o 4 taste receptors sweet 1. sour 2. bitter - avoid toxins (alkaloid) 3. sour - fermentation - additional taste receptors umami o receptor for active compound - glutamate in MSG o savory o attract to proteins in meat and dairy fat o lipid on tongue releases systemic signals which induces secretion from pancreas and gall bladder o receptor CD36 in mice test: there was not systemic signal when receptor CD36 was knocked out in mice. CD36 encodes a fatty acid transporter
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This note was uploaded on 05/03/2010 for the course BIBC bibc 120 taught by Professor Crawford during the Spring '08 term at UCSD.

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Nutrition Note 02 - pepsinogen Today's topic by salivary...

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