DIGESTION Flashcards
INGESTION/EATING
food is taken in by the body
DIGESTION
food is broken down
ABSORPTION
digested food passes into the blood stream
ASSIMILATION
using the food in the cells of the body
ELIMINATION
getting rid of undirected food
ENZYMES
enzymes are chemicals that speed up reactions without being used up in the reaction.
enzymes act on a substrate and breaks it down into a product.
examples:substrate=starch,enzyme=amylase (saliva),product=maltose (sugar)
WHERE DOESS MOST DIGESTION HAPPEN?
most digestion happens in the small intestine
WHAT IS BILE?
bile is made is=n the liver to break down fats
WHAT DOES THE PANCREAS MAKE?
the pancreas makes digestive juices which contain enzymes
PHYSICAL DIGESTION
taking large pieces of food and breaking them down into smaller pieces.
it happens in the mouth (teeth) and stomach (churning)
MOUTH
physical and chemical digestion
OESOPHAGUS
brings food from mouth to stomach
LIVER
makes bile
STOMACH
physical and chemical digestion
PANCREAS
makes digestive juices
SMALL INTESTINE
most chemical digestion
LARGE INTESTINE
water reabsorrption
RECTUM
stores undigested food
ANUS
undigested food passes out
GALL BLADER
storage of bile
INCISOR
at the front of the mouth
4 upper and 4 lower
used for bitting and cutting food
CANINE
one on either side of the incisors
2 upper and 2 lower
for grasping and tearing food
PRE MOLAR
3 a either side of the canine
6 upper and 6 lower
for grinding and crushing food
MOLAR
2 at either side of the premolars
4 upper and 4 lower
used for grinding and crushing food
the teeth an animal has depends on what it eats
HERBIVORE
only eats plants
very large incisors
large molars and pre molars to chew grass
CARNIVORE
only eats meat
large canine teeth
use the test to catch and tear their prey
OMNIVORE
eats plants and meat
need all the different teeth
