Question

Insulin is a protein hormone that is produced and processed through the endomembrane system of pancreatic beta cells. What method of membrane transport is most likely used to export insulin from the beta cells

Answer 1

exocytosis is the method.

Exocytosis is the process by which cells move substances from the intracellular to the extracellular fluid. Exocytosis occurs when vesicles fuse with the plasma membrane and allow their contents to be released extracellularly.

Examples of exocytosis include the Transport of glucagon from the pancreas to the liver. It is processed there to facilitate absorption into the bloodstream. Transport of protein-filled vesicles from T cells to virus-infected cells

Exocytosis excretes secretory vesicles containing nanoparticles (or other chemicals) from the cell membrane to extracellular locations. It is an energy consumption process. Generally, these membrane-bound vesicles contain soluble proteins, membrane proteins, and lipids that are secreted into the extracellular environment.

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