Digestive system
Where does the process of digestion begin?
Mouth
This organ transports food from the mouth to the stomach
esophagus
Ingestion, Digestion, Absorption, Elimination
What is the name for a chemical that speeds up a chemical reaction in the body. Examples of this are amylase or pepsin
Enzyme
What is in saliva that begins the breakdown of carbohydrates?
Amylase
Name the organs of the digestive tract and put them in the correct order of digestion (Hint: 5 organs)
Mouth, esophagus, stomach, small intestine, large intestine
What is mechanical digestion?
physical break down of food by breaking, tearing, crushing and mashing
Our stomach holds _____ acid, that helps digest food. This acid does not burn through our stomach bc of the mucus lining inside.
hydrochloric
What nutrient serves as our body's main source of energy?
Carbohydrates (fruits, vegetables, grains, bread)
Name of the watery substance found in our mouths that facilitates the first chemical digestion
Saliva
What is the function of the small intestines?
Absorb nutrients
What is chemical digestion?
breaking down food by enzymes
The mixture of food and stomach acid that leaves our stomach and goes to the small intestine is called _________
chyme
In our apple lab, what was the enzyme's substrate?
oxygen
True or False: If enzymes lose their shape, they cannot do their job.
true
This organ absorbs excess water and compacts waste
large intestine
Enzymes are a type of
Protein
This secretes digestive juices and weakens stomach acid
pancreas
Name the 3 accessory organs that aid in digestion.
BONUS - name a 4th that seems to no longer serve any purpose
Liver, pancreas, gallbladder
appendix
What type(s) of digestion occur(s) in the stomach?
chemical and mechanical
What type(s) of digestion occur(s) in the mouth?
chemical and mechanical
What are the small structures in the small intestine that help absorb nutrients?
Villi
What is the movement or contraction of the muscles around the esophagus to allow food to pass through?
Peristalsis
What fluid is made and released by the liver and stored in the gallbladder. It helps with digestion and breaks down fats.
Bile
In the graham cracker activity, the liquid that passed through the cheesecloth represented our ...
nutrients.