Day 5 Flashcards
1
Q
amino groups, carboxyl groups, and ionizable R groups are what
A
weak acids and bases
2
Q
what occurs at neutral pH
A
zwitterion
3
Q
what are the steps of titration of amino acids
A
cation to zwitterion to anion
4
Q
which group has an acidic pKa
A
-COOH
5
Q
which group has a basic pKa
A
-NH3+
6
Q
pH at which the net electric charge is zero is what
A
isoelectric point
7
Q
what process forms peptide bonds
A
condensation
8
Q
what process breaks peptide bonds
A
hydrolysis
9
Q
2 amino acids, 1 peptide bond
A
dipeptide
10
Q
3 amino acids, 2 peptide bonds
A
tripeptide
11
Q
a few amino acids
A
oligopeptide
12
Q
many amino acids, molecular weight < 10 kDa
A
polypeptide
13
Q
thousands of amino acids, molecular weight > 10kDa
A
protein
14
Q
numbering and naming starts from what on an oligopeptide
A
n-terminal
