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Related Concept Videos

Cytoplasm01:24

Cytoplasm

5.2K
The cytoplasm consists of organelles and a framework of protein scaffolds called the cytoskeleton suspended in an aqueous solution, the cytosol. The cytosol is a rich broth of water, ions, salts, and various organic molecules.
Protein Folding and Misfolding
The cytoplasm is the location for several cellular processes, including protein synthesis and folding. The aqueous nature of the cytosol promotes protein folding such that the hydrophobic amino acid side chains are buried in the protein...
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Adaptability of Cytoskeletal Filaments01:12

Adaptability of Cytoskeletal Filaments

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The cytoskeleton is a complex dynamic structure performing varied functions based on cellular requirements. The adaptability of the individual filaments in the cytoskeleton determines their ability to perform various functions within the cell. It can undergo rapid reorganization during processes like cell division or remain stable for several hours as in the interphase. The adaptability of these filaments depends on stringent regulatory mechanisms. The microfilament and microtubules of the...
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Introduction to the Cytoskeleton01:33

Introduction to the Cytoskeleton

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Overview of the Cytoskeleton
The cytoskeleton is a network of protein filaments present within the cell, having three distinct filaments ̶   microfilaments, microtubules, and intermediate filaments. Each has characteristic features that distinguish them, including the dynamics of their assembly and disassembly, mechanical properties, polarity, and the type of molecular motors associated with them. Earlier, they were thought to be present only in eukaryotic cells; however, their...
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Distribution of Cytoplasmic Content02:33

Distribution of Cytoplasmic Content

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Cytokinesis segregates a cell’s chromosomes and organelles into its daughter cells. Organelles divide and grow prior to cell division but cannot be synthesized de novo; therefore, cells must receive at least one copy of each organelle to survive. Currently, many of the details of how the organelles are distributed are not yet fully elucidated.
Distribution of cytoplasmic determinants
The cytoplasm contains various organelles, as well as salts, proteins, and water. The distribution of...
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Microtubules01:35

Microtubules

86.4K
There are three types of cytoskeletal structures in eukaryotic cells—microfilaments, intermediate filaments, and microtubules. With a diameter of about 25 nm, microtubules are the thickest of these fibers. Microtubules carry out a variety of functions that include cell structure and support, transport of organelles, cell motility (movement), and the separation of chromosomes during cell division.
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Assembly of Complex Microtubule Structures01:32

Assembly of Complex Microtubule Structures

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Complex microtubule structures are present in resting cells and in dividing cells. In resting cells, they are responsible for maintaining the cellular architecture, tracks for intracellular transport, positioning of organelles, assembly of cilia and flagella. They mediate the bipolar spindle assembly for chromosomal segregation and positioning of the cell division plate in dividing cells. The formation of microtubule complex structures depends on the cell type, cell stage, and cell function.
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Related Experiment Video

Updated: May 16, 2025

The Mechanics of Poro-Elastic Contractile Actomyosin Networks As a Model System of the Cell Cytoskeleton
08:50

The Mechanics of Poro-Elastic Contractile Actomyosin Networks As a Model System of the Cell Cytoskeleton

Published on: March 10, 2023

716

Dynamic structure of the cytoplasm.

Hyojun Kim1, Morgan Delarue1

  • 1LAAS-CNRS, University of Toulouse, CNRS, Toulouse, France.

Current Opinion in Cell Biology
|April 4, 2025
PubMed
Summary

The cytoplasm

Area of Science:

  • Cell Biology
  • Biophysics

Background:

  • The cytoplasm's complex structure is crucial for cellular function but remains poorly understood.
  • Biochemical reactions occur within this dense cellular environment.

Purpose of the Study:

  • To present a novel perspective on cytoplasm structure and dynamics.
  • To highlight the role of physical properties in cellular function.

Main Methods:

  • This review synthesizes recent findings on cytoplasmic organization.
  • Focuses on the dynamic formation of cytoplasmic assemblies.

Main Results:

  • Cytoplasmic physical properties are regulated in space and time, actively contributing to cell function.
  • Local assemblies like condensates and polysomes regulate mesoscale cytoplasmic dynamics.

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Studying Mitochondrial Structure and Function in Drosophila Ovaries
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Related Experiment Videos

Last Updated: May 16, 2025

The Mechanics of Poro-Elastic Contractile Actomyosin Networks As a Model System of the Cell Cytoskeleton
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Published on: March 10, 2023

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Probing Structural and Dynamic Properties of Trafficking Subcellular Nanostructures by Spatiotemporal Fluctuation Spectroscopy
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Conclusions:

  • Understanding the physical regulation of the cytoplasm is key to understanding cellular function.
  • Dynamic cytoplasmic assemblies are critical regulators of cellular processes.