2.3 - Energy & Waste Flashcards
Your body’s way of telling you that it needs food.
hunger
The amount of energy in food is measured by,
calories.
The amount of energy it takes to raise 1KG of water by 1C.
Calorie
Releases the energy from the processed food
your digestive system
the parts of food used by the body to grow and survive
nutrients
5 examples of nutrients
proteins,fats,carbohydrate,vitamins,and minerals
the mechanical and chemical breakdown of food into small particles and molecules that your body can absorb and use
digestion
the 4 steps of digestions
ingestion, digestion, absorption, and elimination
when you chew,mash, and grind food with your teeth and tongue
mechanical digestion
break down pieces of food into small molecules
chemical digestion
when you put food, such as bread, in your mouth
ingestion
an enzyme, in your mouth, that helps break down carbohydrates
saliva
a muscular tube that connects the mouth to the stomach
esophagus
food moves through the esophagus and the rest of the digestive tract by waves of muscle contractions
peristalsis
a large, hollow organ that stores food
stomach
