quiz 3 Flashcards
digestion
breaking down food to enable absorption
mechanical
physical breaking down food (chewing)
chemical
breaking bonds or interfering with nutrient bonds (enzymes)
-saliva and salivary gland
stomach
HCL acid
-denatures bonds
protein enzyme
protease = down to individual AA
Carbohydrate enzymes
amylase, lactase, sucrase, maltase,
amylase
breaks down starch in the mouth
mucosa cells
lactase, sucrase, maltase
fat enzymes
lipase
-breaks down into simpler forms
carbs that cant be digested
fiber and starch
lipids that can be digested
cholestrol
protein that cant be digested
AA cant be digested any further
micronutrients that cant be digested
all nutrients and minerals
absorption
transport of nutrients into the blood
molecules absorbed as is
monosaccharides
monoglycerides
fatty acids .
amino acids
cholestrol
vitamin and minerals
Molecules to big to absorb
fiber, starch, triglycerides, proteins apl
perstalsis
contractions that mix the contents in stomach
gastric juice comes from
gastric pits
pepsin is resistant to
HCl
HCL
acid that denatures proteins
intrinsic factor
protein necessary for b12
mucus protects stomach from
HCL