Coated vesicles are cellular structures surrounded by a protein coat that facilitate the transport of molecules between different compartments within the cell. They play a crucial role in processes such as endocytosis and exocytosis, ensuring the proper sorting and delivery of cargo through the secretory and endocytic pathways.

Coated Vesicles

Cells are like tiny building blocks that make up all living things, and each part inside a cell has a special job to do. These parts work together to help the cell stay alive and do its job in the body.

Cellular Structures

A protein coat, also known as a capsid, is a protective shell surrounding the genetic material of a virus, composed of protein subunits called capsomeres. It plays a crucial role in the attachment and entry of the virus into host cells, as well as in determining the virus's stability and infectivity.

Protein Coat

Transport of molecules

Different compartments

Endocytosis is a cellular process in which cells internalize molecules and particles from their surroundings by engulfing them in a vesicle. This process is essential for nutrient uptake, regulation of surface receptors, and defense against pathogens.

Endocytosis

Exocytosis is a cellular process where vesicles containing biomolecules fuse with the plasma membrane to release their contents outside the cell, playing a critical role in processes such as neurotransmitter release and hormone secretion. This mechanism is essential for maintaining cellular homeostasis and facilitating intercellular communication.

Exocytosis

Sorting and delivery of cargo

Secretory pathways are essential cellular processes that transport proteins and lipids from their site of synthesis to their destination, either inside or outside the cell. These pathways ensure that molecules are correctly processed, sorted, and delivered, playing a crucial role in maintaining cellular function and communication.

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