Difference Between Pinocytosis And Receptor Mediated Endocytosis

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Difference Between Pinocytosis And Receptor Mediated Endocytosis. In this article, you will read about what is Pinocytosis, what is Receptor Mediated Endocytosis, what is the main difference between Pinocytosis and Receptor Mediated Endocytosis, and a comparison between Pinocytosis vs Receptor Mediated Endocytosis.

There are three methods of endocytosis, i.e. Phagocytosis, pinocytosis, and receptor-mediated endocytosis. Endocytosis is the various ways or processes by which cells intake the substances into the cell by forming the vesicles. Here, we will discuss Pinocytosis and Receptor-Mediated Endocytosis.

What Is The Main Difference Between Pinocytosis And Receptor Mediated Endocytosis?

The main difference between Pinocytosis and Receptor-Mediated Endocytosis is that the:

-Pinocytosis is the intake of liquid matter inside the extracellular spaces of the cell. It is not a selective process and simply takes place through the cell membrane.

-Receptor-Mediated Endocytosis is the intake of solid matter and substances by a cell. It is a highly selective process and takes place with the assistance of receptors.

What Is Pinocytosis?

Difference Between Pinocytosis And Receptor Mediated Endocytosis - Pinocytosis
wikimedia.org

Pinocytosis is also referred to as ‘cell drinking’. It is a type of endocytosis that intake the liquids along with their solutes into the cell. If a fluid contains any solid, it is also taken into the cell. Whenever there is a small indention in a plasma membrane, the process of pinocytosis occurs. This happens by the budding of a small vesicle called a pinosome from the plasma membrane. The liquid is absorbed into the cytoplasm and the remaining liquids present in the vesicles fuses with the lysosome.

What Is Receptor Mediated Endocytosis?

Difference Between Pinocytosis And Receptor Mediated Endocytosis - RME
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Receptor Mediated Endocytosis is also known as clathrin-mediated endocytosis. It is another process and type of endocytosis. It generally intakes solid material and solutes into the cell. RME is a selective process, which selects the molecules like nutrient or proteins.

Unlike pinocytosis, receptors on the cell membrane are involved in Receptor-Mediated Endocytosis. When a cell has to absorb a nutrient or any protein, a large molecule like protein called clathrin is formed in the inner plasma membrane. Then, this molecule is budded into the coated vesicle inside the cytoplasm.

Comparison Between Pinocytosis Vs Receptor Mediated Endocytosis:

-Pinocytosis is the intake of fluid matter by a cell.
-Endocytosis is the intake of solid matter by a cell.

-In Pinocytosis, the vesicle is formed by the invagination of the plasma membrane.
-In Receptor Mediated Endocytosis, the vesicle is formed by the inward budding of the plasma membrane.

-Pinocytosis is not a selective process.
-Receptor Mediated Endocytosis is a selective process.

-Pinocytosis is less efficient.
-Receptor Mediated Endocytosis is highly efficient.

-There is low energy consumption in Pinocytosis.
-There is high energy consumption Receptor Mediated Endocytosis.

featured image source: technologynetworks.com

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