Erythrocytes are made up of a protein called haemoglobin. This type of protein can bind four molecules of oxygen using one molecule. This makes it an effective carrier of oxygen.

When a protein is subcutaneously injected, it is the lymphatic system which will collect and remove that protein from the injected area. Therefore, the preferred method of delivering synthetic or naturally-formed proteins is a subcutaneous injection.

Protein degradation would decrease due to ubiquitin's role in delivering to-be-broken-down proteins to the proteasomes.

mRNA carries a copy of the instructions from the DNA in the nucleus to the ribosomes, where protein synthesis occurs. It is known as messenger RNA because it is delivering the message - the instructions for protein synthesis - to the ribosomes.

We are not delivering Ground on July 3rd but we are delivering Express. :-)