Choose the Correct Answer from the List Below

Multiple Choice

Choose the correct answer from the list below. Not all of the answers will be used.
-____________: The charge of an amino group when the pH is one pH unit below the pKa.

A) ionic bonds or salt bridges
B) Brownian motion
C) hydrophobic
D) hydrogen
E) polar
F) nonpolar
G) van der Waals
H) entropy
I) zwitterion
J) amphipathic
K) positive
L) dielectric constant
M) negative