a unit used in expressing the molecular weight of proteins, equivalent to atomic mass unit
(1766–1844), English chemist, father of modern atomic theory. He defined an atom as the smallest part of a substance that could participate in a chemical reaction and argued that elements are composed of atoms. He stated that elements combine in definite proportion and produced the first table of comparative atomic weights
a unit used in expressing the molecular weight of proteins, equivalent to atomic mass unit
a law stating that the pressure exerted by a mixture of gases in a fixed volume is equal to the sum of the pressures that would be exerted by each gas alone in the same volume
(1817–1911), English botanist and pioneer in plant geography. Hooker applied Darwin’s theories to plants and, with George Bentham (1800–84), he produced a work on classification, Genera Plantarum (1862–83)