metabolism Flashcards
(32 cards)
What is metabolism?
Chemical reactions in the body’s cells that change food molecules to energy
How does metabolism work?
Digestive system: breaks down molecules you eat, breaks down large molecules into small molecules such as amino acids and glucose
The smaller molecules can then be used in chemical reactions such as cellular respiration.
What are the building blocks of protein and fiber?
Amino Acids
What are the building blocks of carbohydrates?
Glucose
What are molecules?
2 or more elements put together
Give me an example of molecules?
Oxygen, glucose, and amino acids
What are macro-molecules?
A large complex molecule that is formed by small molecules coming together.
Give me examples of macromolecules
protein, fats
What process goes on in the mitochondria?
Cellular Respiration
What is Cellular Respiration?
How cells turn food into energy. They use oxygen to break down glucose releasing energy.
What is mechanical digestion?
Physical breakdown of food using muscle movement.
Give me examples of mechanical digestion
Teeth ripping and tearing food, The esophagus and small intestine use Peristalsis, stomach churning.
What is chemical digestion?
Chemical breakdown of food using enzymes or acid.
what is the formula for hydrogen?
h2
what organ absorbs water?
small intestine
what type of digestion happens in the mouth?
Chemical, and Mechanical
what is the esophagus?
a muscular tube that carries food from your mouth to your stomach
peristalsis?
muscle contraction which pushes food through a tube called the esophagus
what are enzymes?
proteins that are made by the body and break down specific types of food.
what is stomach acid?
liquid in the stomach that contains acid, and enzymes to break down food into a liquid called chyme
what is the longest section of your digestive tract called?
small intestine
what happens in the small intestine?
most digestion takes place and nutrients from the broken down food get absorbed into your bloodstream
what are villi?
tiny finger like projections in the small intestine, that increase surface area allowing more nutrients to be able to be absorbed into the bloodstream. villi are where all nutrients get removed from the food and sent to body cells
what are the accessory organs?
the salivary glands, liver, gallbladder, and pancreas