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Chapter 2 Vocabulary

32 points
Due:  Wednesday, Sept. 19
Across
Proteins that act as biological catalysts.
Substance that speeds up the rate of a chemical reaction.
Basic unit of matter
Compounds made up of carbon, hydrogen, and oxygen atoms.
Monomers of amino acids.
The elements or compounds that enter a chemical reaction.
Energy needed to start a chemical reaction.
Bond formed by the transfer of electrons from 1 atom to another.
Smallest unit of most compounds.
Negatively charged sub-atomic particle.
Monomers of nucleic acids.
Center of the Atom
Mixture of water and a non-dissolved material.
Formed by the chemical combination of 2 or more elements.
Measurement system used to show the concentration of H+ in a solution.
Electrons found in the outermost shell of the atom.
Positively charged sub-atomic particle
Down
Sub-atomic particle without a charge.
Chemist who lends his name to an inter-molecular force of attraction found in polar molecules.
Bond formed by the sharing of 2 or more electrons.
Reactants of an enzyme-catalyzed reaction.
Attraction between molecules of the same substance.
Non-water soluble biological molecule made from carbon and hydrogen.
Substance that is dissolved in a solution.
Macromolecules made from hydrogen, oxygen, carbon, and phosphorus.
Single sugar molecules.
Atoms of the same element that differ in the number of neutrons that they possess.
A type of bond used by molecules of water.
Attraction between molecules of different substances.
Macromolecules with an amino group at one end.
A type of mixture in which all components are evenly mixed.
Pure substance that consists entirely of one type of atom.
Liquid part of a solution.