The unit that a substance is measured with. A lipid is a water insoluble organic compound composed of a glycerol component and fatty acids A compound is a substance where molecules are composed or more than one type of chemical element. An amino acid is an organic compound containing both amino and carboxylic acid functional groups. A nucleic acid is an organic compound composed of nucleotide chains. A protein is an organic compound formed of chains of amino acids A glycoprotein is a protein with a carbohydrate component. The class chemical is used as the basis for many substances in the human body, including proteins, lipids, hormones, and so on. The negative of the log of hydrogen ion concentration. Indicates the acidity of a substance. Sterols or steroid alcohols are a type of lipid and a subgroup of steroids. A carbohydrate is an organic compound composed of one or more monosaccharide sugars. An ion is an atom or a molecule with a net electric charge. In biochemistry, a ions commonly form by disolving in water. The temperature of a substance or person A peptide is an organic compound composed from amino acids. In a strict sense a protein is a peptide but it is often distinguished by the number of amino acids: peptides having less than about a hundred amino acids and proteins having more. An element is a substance composed of a single chemical element. A ketone is compound with a carbonyl group linked to two other carbon atoms. A property of a chemical substance The nitrite ion is NO2−. g / L grams per Liter Thyroid-stimulating hormone (TSH) is a hormone synthesised and secreted by the anterior pituitary gland Androgens (testosterone) is a steroid hormone that stimulates or controls the development and maintenance of masculine characteristics. Triglycerides are glycerides where the glycerol is esterified with three fatty acids. Sodium (Na), atomic number 11, belonging to the alkali metals, is the positive ion with charge +1 in water. It is found in common table salt. Estrogens are a group of steroid compounds functioning as the primary female sex hormone. Carries cholesterol ('bad' cholesterol). Calcium(Ca), atomic number 20. Calcium is an alkaline earth metal that forms an ion with charge +2 in water. Cholesterol is a sterol (a combination steroid and alcohol) and a lipid found in the cell membranes of all body tissues. A chlorine atom or molecule commonly disolves in water forming a chloride ion with charge -1. meq / L Milli equivalanets per liter. Glucose (Glc), a monosaccharide is one of the most important carbohydrates. All cells use it as a source of energy. Potassium(K), atomic number 19. Potassium was first isolated from potash. Potassium is an alkali metal that forms a positive ion with charge +1 in water. CarbonDioxide (CO2) is a byproduct of respiration. Carries cholesterol ('good' cholesterol). Creatinine is a breakdown product of creatine, an important part of muscle. milligrams per liter mg/L Hemoglobin is the iron-containing protein in red blood cells that transports oxygen from the lungs to the rest of the body. Chlorine (Cl), atomic number 17 is a halogen that commonly forms a chloride ion in water.