| Term | Definition |
|
carbohydrate |
compound made up of carbon, hydrogen and oxygen in a 1:2:1 ratio, they are the main energy storage molecules of living things, they are also called "sugars") |
|
monosaccharide |
one molecule of carbohydrate, the building blocks of carbohydrates ("mono" means one, "saccharide" means sugar, so monosaccharide means "one sugar"), an example of a monosaccharide is glucose |
|
lipid |
compound that cannot be dissolved in water (because they are not polar and so do not have an electrical charge that would attract them to water), examples of lipids are fats, waxes, phospholipids, and steroids, they make up part of the cell membrane |
|
protein |
compound made up of amino acids that are chained together and then the chains are folded and twisted into specific shapes, proteins help form the tissues of living things and help run life processes |
|
amino acid |
the builing blocks of proteins |
|
nucleic acid |
a chain of smaller molecules called nucleotides, the two type of nucleic acids are RNA and DNA |
|
nucleotide |
the individual molecules that make up nucleic acids, each nucleotide is made of a sugar, a phosphate and a nitrogen base |
|
DNA |
deoxyribonucleic acid, a type of nucleic acid that is responsible for determining what proteins are made in a living organism, by controlling what proteins are made, DNA determines the physical and chemical traits of an organism |
|
RNA |
ribonucleic acid, a type of nucleic acid that is important in making proteins |
|
ATP |
adenosine triphosphate, a molecule that stores and then releases energy in living organisms |