2.3 enrgy and waste sci fi Flashcards
when you put food in mouth. num num.
ingestion
where cemical digestion begin
in mouth
the amount of energy in food is measured in calories
calorie
the amount of energy it takes to raise the temp of 1 kg of water by 1.c
calorie
releases the energy from the processed food.
your digestive system
the parts of food used by the body to grow.
nutrients
2 examples of nutrients
proteins, fats
the mechanichal break down of food into stuff the body needs
digestion
2 steps of digestion
digestion, elimination
when you chew with your teeth
mechanical digestion
breaks down food
chemical digestion
when you put food in your mouth
indigestion
an enzme in your mouth
saliva
a tube thats connects to stomach
esophagus
food that moves by waves of muscle
peristalsis
a holow organ that stores food
stomach
an adult stomach holds —– of food
2 liters
enables the stomach to get biger
the folds on the inner walls
the cells in the folds help break down
proteins
the fluid that makes stomach acid
gastric juice
a enzyme that breaks down proteins
pepsin
a long tube conected to the stomach
small intestine
fingerlike stuff that covers the small intestion
villi
nutrients that enter blood throu this organ
small intestine
