Digestive system
Where does the first step of the digestive system take place?
Mouth
What is the function of the esophagus?
Transports food from the mouth to the stomach
Name the enzyme, substrate and product involved in enzyme action in the mouth.
Amylase, starch, maltose
What is the name for a chemical that speeds up a chemical reaction in the body.
Enzyme
What is a function of the bacteria in the large intestine?
Produce vitamins etc.
Name the MAIN digestive system organs in the correct order (Hint: 5 organs)
Mouth, esophagus, stomach, small intestine, large intestine
what is the function of the pancreas?
Secretes insulin and digestive juices
What is the difference between autotrophic and heterotrophic
Autotroph: make own food
heterotroph: cannot make own food, must obtain from environment.
What protects the stomach from self-digestion?
Mucous
What is the function of the liver?
Detoxify, makes bile etc.
What is the function of the small intestines?
Absorbs all the nutrients and sends it through to the rest of the body.
What is the pH of the stomach?
pH 1-2
How does pancreatic juice reach the duodenum?
pancreatic tract
Name 2 parts of the small intestine
Ileum and duodenum
Name the four stages of digestion in order.
Ingestion, Digestion, Absorption, Egestion
What is the main function of the large intestines?
Absorbs water and compacts the waste
What is the function of bile?
Emulsify fats
What prevents food from entering the windpipe
Epiglottis
Name the 3 accessory glands
Liver, pancreas, and salivary glands.
Adaptation of small intestine
Villi one cell thick etc
What is pancreatic juice made of?
Sodium Hydrogen Carbonate and enzymes
What are the structures in the small intestine that absorb nutrients
Villi
What is the function of the lacteal?
Absorb fatty acids and glycerol
Name the part in the stomach that allows chyme into duodenum.
Sphincter
What is the human dental formula?
2123/2123