The amount Flashcards
(32 cards)
The amount of energy in food measured in Calories.
calorie
the amount of energy it takes to raise temperatures
calorie
Releases the energy from the processed food.
your digestive system
The parts of food used by the body to grow and survive
Nutrients
Examples of nutrients
protein,fats,carbohydrates vitamins and minerals.
the mechanical and chemical breakdown of food into small particles and molecules that your body can absorb
Digestion
The 4 step digestion
ingestion, digestion absorption and elimination
When you chew ,mash ,and grind food with you teeth and tongue
mechanical Digestion
Breakdown pieces of food into small molecules
Chemical digestion
when you put food such as bread ,into your mouth
ingestion
an enzyme in your mouth that helps break down carbohhydrates
saliva
A muscular tube that connects the mouth to the stomach
Esophagus
the food moves through the esophagus and the rest of the digestive tract by waves of muscle contractions
peristalsis
a large hallow organ that stores food
stomach
an adult stomach can hold about of food and liquid
2 liters
Enable the stomach to expand and large amounts of food
the folds on the inner walls
the cells in these folds produce chemicals that helps break down
protein
this stomach fluid makes the stomach acidic
Gastric juice
an enzyme that helps break down protein in foods amino acids
pepsin
a long tube that is connected to the stomach it is about 7m(23ft) long
small intestine
fingerlike projections that covers the folds of the small intestins
villi
Nurtrients enter the blood through blood vessels in this digestive organ
small intestine
also known as the colon
large intestines
is about 1.5 m (5ft) long it has larger diameters the the small intestine
large intestine
