what happens after we put food in our mouths? how does it become us?
TRANSCRIPT
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What happens after we put food in ourMouths?
How does it become us?
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Write the following on the back :
1.Digestion is the process of breaking down food polymers into monomers to be absorbed and recycled by the body.
2.A calorie is a unit of measurement that equals the amount of heat required to raise one liter of water 1 degree Celsius.
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Draw a small Key for the colors on the Bottom of your paper.
carbohydrates= Protein =
Lipids =Nucleic acids =
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Mouth
starts mechanical digestion. Food broken into small pieces.
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Salivary glands
Chemical digestion Enzyme amylase breaks down starches (carbs) into sugar
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Esophagus
Tube for foodfrom mouth to
stomach.
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Stomach
Chemical and mechanicalaction. It releases •Mucus to protect &
lubricate•Hydrochloric acid •pepsin to digest proteins.
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Pancreas•makes insulin (used to regulate blood sugar levels)•neutralizes stomach acid. •Release enzymes to Break down:
proteinsfatsNucleic Acids
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Liver
Makes bile which is stored in the gallbladder.
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Gallbladder
stores bile which acts
like a detergent to break down fats (lipids)
we eat.
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Small intestine
a sight of:
•chemical digestion •absorption of nutrients.
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Large intestine
•Food that enters the Lg. Intestine is mostly cellulose (fiber), water & indigestible matter.
•Removes water from waste and returns it to bloodstream.
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Appendix
No longer used to digest tough fibrous leaves our ancestors ate.
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Anus
•Fiber and indigestible matter leave body as waste(fecal material)
•If large intestine fails to remove excess water you have diarrhea.
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To test for sugar(carbs.) use Benedict’s Solution Blue & heatIf there is sugar The color changesTo orange.
Carbohydrates Lipids Used to Fry Potatoes &Starch (Carbs.)
Protein Found in Meat &Cheese
Lipids
NucleicAcidsIn fresh foodLettuce tomatoes
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