Name: _________________________
CHEM-120 Exam 2
For numbers 1-15, find and write the letter from the terms below that match each
definition. (1 points each)
1) __k__The total number of protons and neutrons in an atom
2) __m__Passive Transport by the random motion of diffusion through the cell
membrane
3) __w__Having right or left handedness
4) __d__Compounds with the same molecular formulas, but different structures
5) __f__A methyl group bonded to a carbonyl group
6) __p__The amount of energy necessary for reactants to surmount the energy
barrier to a reaction; determines reaction rate.
7) __n__Mirror image isomers
8) __e__The energy required to remove one electron from a single atom in the
gaseous state
9) __j__Regular and repeating structural patterns created by H-bonding between
backbone atoms in neighboring segments of protein chains
10) __i__A negatively charged ion
11) __x__A bond in which the electrons are attracted more strongly by one atom than
by the other
12) __g__A compound with an alcohol group and an ether group bonded to the same
atom
13) __u__A hydrocarbon that contains a carbon-carbon triple bond
14) __t__An amide bond that links two amino acids together
15) __c__A compound that has two ether groups bonded to the same carbon atom
a. Acyl
b. Isotopes
c. Acetal
d. Isomers
e. Ionization Energy
f. Acetyl
g. Hemiacetal
h. Tertiary Protein Structure
i. Anion
j. Secondary Protein Structure
k. Mass Number
l. Facilitated Diffusion
m. Simple Diffusion
n. Enantiomers
o. Diastereomers
p. Activation Energy
q. Alkene
r. Cation
s. Alkane
t. Peptide Bond
u. Alkyne
v. Atomic Number
w. Chiral
x. Polar Covalent Bond
y. Ionic Bond
