L5 - Amino Acids Flashcards
1
Q
Primary Structure
A
Sequence of Amino Acids
2
Q
How many amino acids are used in animals?
A
20
3
Q
What properties of R groups vary?
A
Hydrophobicity/Hydrophilicity, Size, Shape and Reactivity
4
Q
Which isomers are incorporated in proteins?
A
L isomers
5
Q
Which Amino Acid does not have an optical isomer?
A
Glycine
6
Q
Zwitterion
A
Backbone contains a positive and negative group
7
Q
At what pH are Zwitterions formed?
A
Isometric point
8
Q
Physiological point
A
pH = 7
9
Q
pKa
A
pH at which an ionisable group is half charged and half neutral
