Differences

Difference between endocytosis and exocytosis (endocytosis vs exocytosis)

Endocytosis is a cellular process by which cells internalize substances from their external environment. Exocytosis is a type of process, in which involves...

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This article writter by MN Editors on October 20, 2021

Microbiology Notes is an educational niche blog related to microbiology (bacteriology, virology, parasitology, mycology, immunology, molecular biology, biochemistry, etc.) and different branches of biology.

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Difference between endocytosis and exocytosis (endocytosis vs exocytosis)
Difference between endocytosis and exocytosis (endocytosis vs exocytosis)

What is the difference between endocytosis and exocytosis?

  • Endocytosis is a cellular process by which cells internalize substances from their external environment.
  • Exocytosis is a type of process, in which involves the movement of materials from the inside of a cell to the exterior of the cell by the use of energy.
TopicEndocytosisExocytosis
DefinitionThe process by which cells actively transport substances into a cell by engulfing them in a vesicle is known as Endocytosis.The Process by which cells actively expel molecules out of the cell into the extracellular fluid is known as Exocytosis.
FunctionHelps to absorb nutrients for efficient cellular functioning and eliminate pathogens and old or damaged cells.Facilitates communication between cells, repairs cell membrane, and eliminates toxins and waste products.
MechanismDuring endocytosis, an endocytic vesicle is formed surrounding the foreign substance, which is either a solid or a liquid.During exocytosis, the vesicle containing the waste is fused with the plasma membrane in order to eliminate its contents.
PathwayOccurs over three pathways – phagocytosis, pinocytosis, and receptor-mediated endocytosis.Occurs through three pathways – regulated, constitutive, and fusion of vesicles with lysosomes
VesiclesA vesicle is formed around the foreign substanceFused with the plasma membrane
Vesicles formationVesicle is formed from cell membrane. It then gets into the cytoplasm.Vesicle is formed in the Golgi apparatus. It then fuses with the cell membrane.
Type of vesicle formedLike phagosomesSecretory Vesicles
Size of Cell membraneIt Decreases the size of the cell membrane.It Increases the size of the cell membrane.
ExamplesEngulfing bacteria by phagocytes is an example for endocytosis.Releasing of hormones out of the cell is an example for exocytosis.
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Microbiology Notes is an educational niche blog related to microbiology (bacteriology, virology, parasitology, mycology, immunology, molecular biology, biochemistry, etc.) and different branches of biology.

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