M4: L-6 Flashcards
1
Q
Which is the only amino acid that isn’t chiral and why?
A
Glycine has an R=H bond
2
Q
What is drawn at the top/ bottom of fisher projections of amino acids?
A
- COOH at top
- R group at bottom
3
Q
What is the pKa value of each functional group in an amino acid associated with?
A
Its ability to donate a proton to water
4
Q
Which form of an amino acid is present in physiological pH?
A
Zwitterionic
5
Q
What is the PI taken from?
A
The average of the two PKa values that are most similar
6
Q
What does electrophoresis separate amino acids based on?
A
Charge
