Proteins 1 Flashcards
(8 cards)
1
Q
What are the functions of protein ?
A
- Defence
- Structure
- Catalysis
- Transport
2
Q
What shape is an amino acid ?
A
Tetrahedral
It has a chiral carbon
3
Q
What is a zwitterion ?
A
An ion with opposite charges on different atoms within the same molecule
4
Q
What type of configuration are all amino acids in proteins ?
A
L amino acids
5
Q
What are possible side chains for AA ?
A
- Glycine - H
- Alanine - CH3
- Serine - CH2OH
- Cysteine - CH2SH
- Histidine
6
Q
How are AAs joined ?
A
Peptide bonds
7
Q
Do peptide bonds rotate ?
A
No
8
Q
When is a hydrogen bond strongest ?
A
When N, H and O are in a straight line
