The substances in food that provide the raw materials and energy the body needs to carry out all the essential processes.
The amount of energy needed to raise the temp. of one gram of water by one Celsius degree.
Nutrients which are composed of carbon, oxygen,hydrogen.
A complex carbohydrate found in in plant foods, fiber can not be broken down.
A major source of energy for your body's cells.
Are high-energy nutrients that are composed of carbon, oxygen,hydrogen
Are usually liquid at room temp.ex: canola oil, olive oil.
Are usually solid at room temp.ex: animal products, meat, dairy products, egg yolks.
Is a waxy, fatlike substance found only in animal products.
Are nutrients that contain nitrogen as well as carbon, hydrogen, oxygen.
Are proteins which are linked together chemically to form large protein molecules.
Act as helper molecules in a variety of chemical reactions within the body.
Percent Daily Value
Indicates how the nutritional content of one serving fits into a diet of a person who consumes a total of 2,000 calories a day
Is the process by which your body breaks down food into small nutrient molecules.
Is the process by which nutrient molecules pass through the wall of your digestive system into your blood.
The fluid released when your mouth waters. Made in salivary glands, helps with mechanical digestion and chemical digestion in the mouth.
Is the protein that speeds up chemical reactions in the body.
A flap of tissue which seals off your windpipe preventing the food from entering.
A muscular tube that connects the mouth with the stomach. Lined with mucus.
Is a thick slippery substance produced by the body. makes food easy to swallow and move. Protects lining of stomach acid doesn't burn hole in it.
Involuntary waves like muscle movement that moves food through the digestive track.
A J-shaped muscular pouch that holds food- releases a little at a time. Finishes mechanical digestion- muscles produce churning motion. Chemical digestion occurs here- digestive juices( enzyme, hydrochloric acids and mucus.
Is the part of the digestive system where most of the digestion and absorption takes place. Liquid ( digested food ) mixes with enzymes and secretions from liver and pancreas. Diameter is small but makes up 2/3 of digestive system.
Is located in the upper portion of the abdomen which is largest and heaviest. Acts like a chemical factory. produces bile. Breaks down medicines and removes harmful substances( nitrogen)
Secretion made in the liver that breaks down large fat particles into smaller fat particles- stored in gallbladder.
The organ that stores bile and sends it to the small intestine after you eat.
Is a triangular organ that lies between the stomach and first part of the small intestine. Produces enzymes that go into the small intestine that break down starches, proteins,fats.
Millions of tiny finger shaped structure which lines the small intestine and absorb nutrients into the bloodstream. Increases surface area & allows digested food to be absorbed faster.
Is the last section of the digestive system. Contains bacteria that feed on the material to make vitamins. Water is removed and absorbed into bloodstream. remaining material getting reedy for elimination.
Large Intestine ends in a short tube where waste is compressed
A muscular opening at the end of the rectum which eliminates waste.
Are nutrients that are not made by living things.
Foods are physically broken down into smaller pieces( grinding, mashing, churning)
Chemicals produced by the body break foods into their smaller chemical building blocks.
Mechanical digestion- teeth breaking food
Chemical digestion- saliva
Strong acid- allows enzyme to work and kills bacteria( part of digestive juices)
Enzyme in the stomach that digests proteins-( part of digestive juices)