Chapter 2 Flashcards
(26 cards)
Substance that can release hydrogen ions in detectable amounts.
Acid
Proton acceptors
Base
Provides a form of chemical energy that is useable by all body cells.
Adenosine triphosphate ATP
Organic compound composed of carbon, hydrogen, and oxygen.
Carbohydrate
Process in which molecules are formed, changed, or broken down.
Chemical reaction
Substance composed of two or more different elements, the atoms of which are chemically united.
Compound
A bond involving the sharing of electrons between atoms.
Covalent bond
A destructive chemical reaction in which complex substances are broken down into simpler ones.
Decomposition reaction
A substance that breaks down into ions when in solution and is capable of conducting an electric current.
Electrolyte
The ability to I’d work.
Energy
A substance formed by living cells that acts as a catalyst in bodily chemical reactions.
Enzyme
A chemical reaction in which bonds are both made and broken, atoms become combined with different atoms.
Exchange reaction
Weak bond, in which a hydrogen atom forms a bridge between two electron hungry atoms. Important intermolecular bond.
Hydrogen bond
A compound that lacks carbon, for example water.
Inorganic compound
Different atomic form of the same element. Isotopes vary only in the number if neutrons they contain.
Isotope
Organic compound formed of carbon, hydrogen, and oxygen.nfats and cholesterole.
Lipid
Particle consisting of two or more atoms held together by chemical bonds.
Molecule
Class of organic molecules that includes DNA and RNA.
Nucleic acid
A compound containing carbon, proteins, carbohydrates, and fats.
Organic compound
The symbol for hydrogen ion concentration, a measure of the relative acidity or alkalinity of a solution.
pH
A complex nitrogenous substance, the main building material of cells.
Protein
The process of spontaneous decay seen in some I’d the heavier isotopes, during which particles or energy is emitted from the atomic nucleus, results in the atom becoming more stable.
Radioactivity
Isotope that exhibits radioactive behavior.
Radioisotope
Ionic compound that dissociates into charged particles (other than hydrogen or hydroxyl ions) when dissolved in water.
Salt
