2.3 energy and west Flashcards
The amount of energy in food is measured in calories.
Calorie
The amount of energy it takes to raise the temperature of 1 kg of water by 1 C.
Calorie
Releases the energy from the processed food.
Your digestion system
The parts of food used by the body to grow and survive
Nutrients
5 Example of nutrients
Proteins, fats, carbohydrates, vitamins, and minerals
The mechanical and chemical breakdown of food into smell particles and molecules that your body can absorb and use.
Digestion
The 4 steps of digestion
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, into 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, hallow organ that stores food.
Stomach
An adult stomach can hold about the food and liquid.
2 Liters
