Biology: UNIT 2Vocabulary – Biochemistry
NAME: ________ ______________ DATE: _______________ BLOCK: __4___
Match the vocabulary term to the correct definition.
1. _F____ The simplest particle of an element that retains all the
properties of that element.
2. __A___ The sub-atomic particle that is neutral having no
charge.
3. __D___ The dense center of the atom containing protons and
neutrons.
4. _C____ The sub-atomic particle that has a positive charge.
5. _E____ The sub-atomic particle that has a negative charge.
6. _B___Attraction between a slightly positive hydrogen atom and
a slightly negative atom like Nitrogen or Oxygen.
7. _G____ A bond that forms when two atoms share one or more
pairs of electrons (forms between two nonmetals)
8. __K___ A substance dissolved in a solution. It is present in the
least amount.
9. _I____ In a solution, it is the substance that dissolves another
substance. It is present in the greater amount.
10. __H___ A measure of a solution’s acidity or hydronium ion
concentration.
11. __O _Ameasure of a solution’s acidity or hydronium ion (OH-)
concentration.
12. __M___ Any substance that increases the concentration of
hydrogen ions (H+) when added to an aqueous solution.
13. ___J__ A solution that does not change pH when an acid or
base is added.
14. _P____ A mixture in which one or more substances are
uniformly dissolved in another substance.
15. __L___ The attraction between molecules of different
substances.
16. ___Q__Attraction between molecules of the same substance
(H2O).
17. __N___Has a positive end and a negative end.
18. __U___ A large molecule made up of many monomers bonded
together. They can also be biomolecules and polymers.
19. __R___ Macromolecule made of amino acids.
20. __T___ A monomer that makes up proteins.
21. __W___ Macromolecules made of nucleotides. This is the
storage form of genetic information.
22. _Z____ Monomer that makes up nucleic acids. It contains
C,H,O,N,P,S.
23. __V___ Nonpolar molecules made up of long chains of carbon
atoms bonded to hydrogen and oxygen. They provide a storage
form of energy for the cell.
24. _X____ Long chains of carbon atoms bonded to hydrogen
atoms. They are the subunit that make up lipids.
25. __S___ Three fatty acids bonded to a glycerol molecule.
26. __Y___A molecule that makes up cell membranes.
27. __AA___A compound made of carbon, hydrogen, and oxygen.
It provides useable (quick) energy for the cell.
A. Neutron
B. Hydrogen Bond
C. Proton
D. Nucleus
E. Electron
F. Atom
G. Covalent Bond
H. pH
I.
Solvent
J. Buffer
K. Solute
L. Adhesion
M. Acid
N. Polar
O. Base
P. Solution
Q. Cohesion
R. Protein
S. Triglyceride
T. Amino Acid
U. Macromolecule
V. Lipid
W. Nucleic Acid
X. Fatty Acid
Y. Phospholipid
Z. Nucleotide
Biology: UNIT 2Vocabulary – Biochemistry
28. _EE____ An important class of catalysts in living things; they
speed up chemical reactions.
29. _DD____ The specific reactant that an enzyme acts on.
30. __BB___ The amount of energy needed to start a chemical
reaction.
31. __CC___ Form of energy used by the cell to perform cellular
functions.
32. __FF___ A region on an enzyme that binds to a protein or other
substance during a reaction.
AA.
Carbohydrate
BB.
Activation
Energy
CC.
ATP
DD.
Substrate
EE.Enzyme
FF. Active Site