Digestion Flashcards
What is the name given to the process of taking food into the mouth
Ingestion
How many permanent teeth does an adult have
32
What is the name given to the teeth that are used for cutting and biting
Incisors
What is the name given to teeth that are used to grip and tear food
Canine
What is the name of the teeth that crush soft food
Pre molar
What is the name given to the teeth that crush hard food
Molar
What is the hard outer part of the tooth called
Enamel
What is the part of the tooth called that sits above the gum and you can see
The crown
What holds the tooth in the gums and is not visible to us
The roots
What is the part of the tooth that contains all the nerves and blood vessels
Pulp cavity
What is the function of the molar teeth
Crush and grind hard food
What is the function of the incisors
Cut and bite food
What should you do to look after your teeth
Brush them 2 times a day
Floss
Visit dentist twice a year
Use toothpaste with fluoride
What is the purpose of the saliva in our mouth
To moisten food so easier to swallow
To start the digestion of starch to sugar
What is digestion
Breaking down of large insoluble molecules to small soluble molecules
What is the test for starch
Add iodine
Turns from yellow brown to blue black if starch is present
What is the test for sugar
Add Benedict’s and heat in water bath
If sugar present turns from blue to brick red precipitate
What happens to saliva if it is boiled
It can no longer break down the starch to sugar
What is the purpose of the acid in the stomach
To kill bacteria
to help digest food especially allow protein enzymes to work in stomach
What happens in the duodenum (start of small intestine)
All food is digested by enzymes
What happens in the ileum
Food passes into the blood
Where in the body are villi found
Ileum
What is the job of the villi
Increase the surface area to allow absorption of food
What food group will end up in the large intestine
Fibre
What happens in the large intestine
Water is absorbed
What is egestion
Removal of undigested material (faeces)
What is the wave like movement of material along the digestive system known as
Peristalsis
