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Biomolecules Quiz
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Element
a substance that ordinarily cannot be broken down chemically to form simpler kinds of matter
atom
the simplest particle of an element that retains all the properties of that element
proton
a subatomic particle with a positive charge
neutron
a subatomic particle with no electric charge
acid
any substance that increases the concentration of hydrogen ion (H+) when added to a water solution
aqueous
a solution in which water is the solvent
activation energy
amount of energy required for a chemical reaction to start and to continue on its own
base
any substance that increases the concentration of hydroxide (OH-) ions when added to a water solution
buffer
chemical that neutralizes small amounts of acids or bases added to a solution
compound
composed of two or more parts
covalent bond
a bond that forms when two atoms share one or more pairs of electrons
catalysts
a chemical that reduces the amount of activation energy need for a reaction but is not a reactant. speed up reaction
electron
a particle with a negative electric charge that orbits the nucleus of an atom
energy
available power/charge
exothermic
gives off heat
endothermic
makes its own heat and keeps it
enzymes
a catalyst usually a protein, breaks down its substrate
ionic bond
a bond formed by electrical attraction between two oppositely charged ions
ion
an atom or a compound with a net electrical charge
isotope
one of multiple forms of a chemical element that has a different number of neutrons than the other atoms of that element.
molecule
a chemical structure composed of one or more atoms
reactants
a compound or atom involved in a chemical reaction
substrate
lies beneath and supports another the reactant in an enzyme catalyzed reaction
products
products are made out of the substrate which is formed by the enzyme
solution
a mix in which one or more substance are uniformly dissolved in another substance
solute
a substance dissolved in a solution
solvent
in a solution, the substance in which a a solute is dissolved
ph
tests the acidity, relative concentrations of hydronium ions and hydroxide ions in a solution
Author
ms104080104
ID
2979
Card Set
Biomolecules Quiz
Description
Shitload of Vocab
Updated
2009-12-13T21:29:35Z
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