A substance that can release a proton. Contrast with ketone.
Proteins are polymers of amino acids.
Consists of a nucleus and one or more electrons. The number of protons in the nucleus of an atom, also equal to the number of electrons around the neutral atom. Determines the chemical properties of the atom. The average weight of an atom of an element on the atomic mass unit scale. The emulsion is developed, and the location of the radioactivity in the cell is seen by the presence of silver grains in the emulsion.