2.3 energy and waste Flashcards
When you put food in your mouth.
ingestion
where does mechancial and chemical digestion begain.
yo big fat mouth
the amount of energy in food is measured in calories.
calorie
the amount of energy it takes to raise the temperture 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
5 example of nutrients.
digestion
the mechanical and chemical breakdown of food into small particles and molecules that your body can absurd 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 track by waves of muscle contract
peristalsis
