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Endocytosis. Endocytosis is the process in which cells absorb molecules by engulfing them. The plasma membrane creates a small deformation inward, called an invagination, in which the substance to be transported is captured. Diffusion is the movement of particles from high concentration to low concentration in a substance. This process is essential for life on Earth, allowing for the movement of molecular compounds into and out of the cell.
Endocytosis. The endocytosis process occurs when the cell introduces molecules or particles.
Phagocytosis. If endocytosis captures particles, then the process is known as phagocytosis.
Pinocytosis. In the event that these captured particles are liquid, the process is known as pinocytosis. exocytosis.
Finally, when the vesicles reach the cytoplasm and fuse with the cell membrane, releasing their contents, this process is called exocytosis.
Endocytosis. The endocytosis process occurs when the cell introduces molecules or particles.
Phagocytosis. If endocytosis captures particles, then the process is known as phagocytosis.
Pinocytosis. In the event that these captured particles are liquid, the process is known as pinocytosis. exocytosis.
Finally, when the vesicles reach the cytoplasm and fuse with the cell membrane, releasing their contents, this process is called exocytosis.
Diffusion, pinocytosis, carrier-mediated transport, and transcellular transport are the mechanisms that control the movement of molecules across membranes.
What is diffusion ?
Diffusion is the overall net movement of anything from a higher concentration to a lower concentration. A gradient in the Gibbs free energy or chemical potential drives diffusion.
The process by which cells take in molecules by engulfing them is known as endocytosis. The substance to be carried is caught in a little invagination that the plasma membrane forms that extends inward.
The terms "concentration gradient," "pressure gradient," and "temperature gradient" are used to describe changes in concentration, pressure, and temperature over a given distance. The Latin term diffundere, which meaning "to spread out," is the root of the English word diffusion.
Thus, Diffusion, pinocytosis, carrier-mediated transport, and transcellular transport are the mechanisms that control the movement of molecules across membranes.
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