Biological Molecules Quiz (6) Biology AS Level
Insulin is a globular protein involved in cell signalling. It is transported in the blood plasma from the cells that synthesise it to its target cells. A molecule of insulin contains six sulfur-containing amino acids and has two polypeptide chains.
Which statements about insulin are correct?
1- An insulin molecule has a quaternary structure.
2- Insulin polypeptides are held together by six disulfide bonds.
3-…