Nutra Sci Notecards - What are the reservoirs of the GI...

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What are the reservoirs of the GI tract? The stomach, gall bladder, and rectum Where does the majority of absorption take place? In the villi of the small intestine When does the majority of nutrient absorption take place? 90% of the lipids, proteins, and carbs in the diet are absorbed after digestion. Where do the villi drain? What are their names? What does each store? The villi drain into 2 different circulation systems. The portal system (proteins, carbs, short and medium chain fatty acids and water soluble vitamins) and Lymphatic system (long chain fatty acids and fat- soluble vitamins). The contents of the portal go directly to the liver. What percentage of the energy nutrients entered into the digestive system are absorbed in a healthy human body?
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90-100% of the energy nutrients are digested and absorbed in a healthy human system. Where is the Amylase enzyme present? The mouth and small intestine What is the CHO (Carbohydrates) chemical formula? CnH2nOn * all CHO’s (digestible and fiber) consist of 5-6 carbon atoms How are CHO’s produced? Photosynthesis creates carbs as well as oxygen What happens to most carbs once they enter the body? Once absorbed into the body, most CHO are ultimately turned into glucose by the liver.
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