energy and waste Flashcards
when you put food in your mouth
ingestion
the amount of energy is measured in
calorie
the amount of energy it takes to raise the temperature of 1 kg of water by 1°c.
calorie
release the energy from the processed food
your digestive system
5 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 adsorb and use
digestion
the 4 steps of digestion
ingestion, digestion, absorption, elimination
when you put, such food as bread, into your mouth
ingestion
when you chew, mash, and grind food with your teeth and tongue
mechanical digestion
break down pieces of food into small molecules
chemical digestion
an enzyme, in your mouth, that helps you break down carbohydrates
saliva
a muscular tube that connects your mouth to your stomach
Esophagus
food through the esophagus and the rest of the day just to some track by waves of the muscle traction
Peristalsis
a large hollow, organ that stores
stomach
an adult stomach and hold _________ of food and liquid
2 liters
enables the stomach to expand and hold large amounts of food
the fold on the inner walls
the cells in the folds produce chemicals that help break down _____
proteins
this stomach fluid makes the stomach acidic
gastric juice
an enzyme that helps break down the protein and food and amino acids
pepsin
long to bake cake connect to the stomach. it is 7 m long
small intestine
finger like projections in the small intestine
vili
nutrients enter the blood through blood vessels in the digestive organ
small intestine
also known, as a colon
large intestine
is about 1.5 (5 ft) long it’s larger diameter than the small intestine
large intestine
