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What does food provide us with?
-energy for body processes
-heat for body temperature regulation
-building blocks for growth and maintenance of body tissues
What type of digestion takes place in the mouth?
-chemical: salivary amylase (carbs) and lingual lipase (triglyceride)
What types of digestion occur in the stomach?
-mechanical: mixing food w/ gastric juice
-chemical digestion of proteins and fats
What does gastric juice contain?
HCl (to denature proteins), pepsin (to digest protein), gastric lipase (to digest fat)
What is the pancreas role in digestion?
produces digestive enzymes and produces bicarbonate to neutralize chyme
What are the specialized structures of the small intestine to facilitate absorption?
folds, villi, microvilli and the brush border
what occurs in the large intestine?
-some water and nutrient absorption
-concentration to form feces
T/F: vitamins and minerals are digested in the small intestine
false: vitamins and minerals are not "digested" but broken down or absorbed with fat
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