A cell takes in dissolved materials by forming tiny vesicles...

Name: Problem 9, Chapter 5: Biology
Uploaded: 2021-12-13T20:21:40-08:00
Duration: 1 min 2 s
Channel: Hunza Gilgit
Description: A cell takes in dissolved materials by forming tiny vesicles around fluid droplets trapped by folds of the plasma membrane. This process is (a) carrier-mediated active transport (b) pinocytosis (c) receptormediated endocytosis (d) exocytosis (e) facilitated diffusion

A cell takes in dissolved materials by forming tiny vesicles around fluid droplets trapped by folds of the plasma membrane. This process is (a) carrier-mediated active transport (b) pinocytosis (c) receptormediated endocytosis (d) exocytosis (e) facilitated diffusion

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Key Concepts

Endocytosis

Endocytosis is a fundamental cellular process that involves the intake of substances by the cell through an invagination of the plasma membrane, which then pinches off to form a vesicle. This mechanism allows cells to internalize nutrients, fluids, and other molecules, and it plays a critical role in processes such as nutrient uptake, immune surveillance, and cellular signaling.

Pinocytosis

Pinocytosis is a specific form of endocytosis often referred to as 'cell drinking.' It is the process by which cells engulf extracellular fluid along with its dissolved contents, forming small vesicles. Unlike other forms of endocytosis that may target specific materials, pinocytosis is typically non-selective, allowing the cell to sample the fluid environment continuously.

Vesicle Formation

Vesicle formation is the process by which a segment of the plasma membrane folds inward to enclose extracellular material, leading to the creation of a vesicle. This process is essential for various cellular activities, including endocytosis and intracellular transport, as it provides a means to compartmentalize and move different types of molecules efficiently within the cell.

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