bio molecules Flashcards
large group of organic compounds occurring in foods and living tissues
carbohydrates
class of organic compounds that are fatty acids
lipids
class of nitrogenous organic compounds that consist of large molecules composed of one or more long chains of amino acids
proteins
a complex organic substance present in living cells, especially DNA or RNA
nucleic acids
each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter.
elements
a thing that is composed of two or more separate elements
compounds
any of a large class of chemical compounds in which one or more atoms of carbon are covalently linked to atoms of other elements, most commonly hydrogen, oxygen, or nitrogen
organic compounds
an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.
ions
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.
isotopes
is the physical phenomenon of chemical substances being held together by attraction of atoms to each other through sharing, as well as exchanging, of electrons -or electrostatic forces.
chemical bonds
a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form or a nuclear reaction.
chemical reaction
a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
enzyme
the chemical processes that occur within a living organism in order to maintain life.
metabolism
the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
homeostasis
a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent).
solution