Proteins Flashcards
1
Q
State three properties of a fibrous protein that are different from those of a globular protein
A
- insoluble
- strong
- unreactive
2
Q
Which protein is a fibrous protein which is flexible but does not stretch?
A
collagen
3
Q
Which protein is globular with a specific fixed shape?
A
Insulin
4
Q
Which protein is fibrous and which recoils after being deformed?
A
Elastin
5
Q
Which protein is globular and can change shape?
A
Haemoglobin
6
Q
The secondary structure of a protein is determined by the arrangement of what bonds that stabilise the strucutre?
A
hydrogen
7
Q
What are the polypeptides that form part of the quaternary structure of haemoglobin known as?
A
alpha and beta chains/subunits
8
Q
What elements are in an amino acid?
A
Carbon, hydrogen, oxygen and nitrogen
