Answer to Question #134225 in Molecular Biology for lesley love

Question #134225
provide an example of a molecular and function that is transferred using endocytosis and exocytosis
Expert's answer

Transferrin and transferrin receptor are examples of molecules that are transferred using endocytosis and exocytosis. Transferrin is a protein that serves as an iron-binding carrier. Transferrin binds iron ions in the extracellular space and interacts with the transferrin receptor localized on the surface of the plasma membrane. The cell uses endocytosis to internalize the receptor-ligand complex. As a result, the process provides the transport of iron ions into the cell. On the other hand, the cell uses exocytosis to relocalize the receptor to the cell membrane that can be further used for the intake of the transferrin-iron complex.

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