What happens after we put food in our Mouths? How does it become us?

What happens after we put food in ourMouths?

How does it become us?

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.

Draw a small Key for the colors on the Bottom of your paper.

carbohydrates= Protein =

Lipids =Nucleic acids =

Mouth

starts mechanical digestion. Food broken into small pieces.

1

Salivary glands

Chemical digestion Enzyme amylase breaks down starches (carbs) into sugar

Esophagus

Tube for foodfrom mouth to

stomach.

Stomach

Chemical and mechanicalaction. It releases •Mucus to protect &

lubricate•Hydrochloric acid •pepsin to digest proteins.

Pancreas•makes insulin (used to regulate blood sugar levels)•neutralizes stomach acid. •Release enzymes to Break down:

proteinsfatsNucleic Acids

Liver

Makes bile which is stored in the gallbladder.

Gallbladder

stores bile which acts

like a detergent to break down fats (lipids)

we eat.

Small intestine

a sight of:

•chemical digestion •absorption of nutrients.

Large intestine

•Food that enters the Lg. Intestine is mostly cellulose (fiber), water & indigestible matter.

•Removes water from waste and returns it to bloodstream.

Appendix

No longer used to digest tough fibrous leaves our ancestors ate.

Anus

•Fiber and indigestible matter leave body as waste(fecal material)

•If large intestine fails to remove excess water you have diarrhea.

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