Transport Protein Definition:

A protein used to transport molecules or ions from one location to another. Hemoglobin is a classic example of a transport protein, used to transport molecular oxygen from the lungs to all the tissues of the body.

Transport Protein Explained:

The group is a small organic molecule that is bound tightly to protein. Other membranes link transport proteins, that carry other molecules across membranes, including amino acids, ions, and vitamins.