The Function Of Digestion Flashcards
Macromolecule
A very large molecule made up of smaller molecules that are linked together
Metabolism
The sum total of all of the chemical reactions that occur in an organism
Essential Nutrient
A nutrient that can not be made by the body, and must therefore be obtained from food
Monosaccharide
A simple sugar with three to seven carbon atoms
Disaccharide
A sugar made up of two monosaccharide molecules
Polysaccharide
A large molecule made up of many linked monosaccharide molecules
Glycogen
A polysaccharide made up of glucose units
Lipid
An organic compound that does not dissolve in water, such as fat and oil
Amino acid
A building block of protein
Peptide bond
A bond that holds together the amino acids in a protein
Polypeptide
A linear chain of several amino acids linked by peptide bonds
Hydrolysis
A chemical reaction in which water breaks apart macromolecules into smaller molecules
Enzyme
A protein molecule that helps speed up important chemical reactions In The body
Alimentary canal
The tube through which food is processed, beginning at the mouth and ending at the anus, also known as the digestive tract
Mechanical digestion
The physical breakdown of large pieces of food into smaller pieces in the mouth by the action of teeth, beak, or other similar structures, and by contractions and churning motions in the stomach
