2.3 Energy & Waste Flashcards
The amount of energy measured in food in calories
Calorie
the amount of temperature of 1 kg of water by 1
Calorie
Releases energy from processed food
Digestive system
parts of food used by the body to grow and survive
Nutrients
5 examples of nutrients
carbohydrates, proteins, fats, vitamins, and minerals
the mechanical and chemical breakdown of food
digestion
the 4 steps of digestion
ingestion, digestion, absorption, and elimination
when you chew food with your teeth and tongue
mechanical digestion
when you breakdown food into small molecules
chemical digestion
when you put food, such as bread, in yo mouth
ingestion
a mouth enzyme that starts ingestion and helps break down carbohydrates
saliva
a muscular tube that connects from mouth to stomach stomach to mouth
espohagus
food moves through by waves of contractions
peristalsis
a large hollow organ that
Stomach
a adult stomach can hold about ________ of food
2 Litres