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Related Concept Videos

Animal and Plant Cell Structure01:30

Animal and Plant Cell Structure

Animal and plant cells not only differ in their structure, function, and mode of nutrition but also in how they reproduce, specialize, and organize into complex structures.
Cell Division
Though both plant and animal cells divide by mitosis (for non-gametic cells) and meiosis (for gametic cells), they differ in the specifics of this process. Unlike animal cells, plant cells lack centrosomes — an organelle responsible for organizing the spindle fibers and segregating the chromosomes during cell...
Cell Diversity01:13

Cell Diversity

The concept of a cell started with microscopic observations of dead cork tissue by Robert Hooke in 1665. Hooke coined the term "cell" based on the resemblance of the small subdivisions in the cork to the rooms that monks inhabited, called cells. About ten years later, Antonie van Leeuwenhoek became the first person to observe the living and moving cells under a microscope. In the century that followed, the theory that cells represented the basic unit of life developed.
Multicellular organisms...
Tumor Progression02:07

Tumor Progression

Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
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Overview of Cell Signaling01:23

Overview of Cell Signaling

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
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Overview of Cell Signaling01:23

Overview of Cell Signaling

Despite the protective membrane that separates a cell from the environment, cells need the ability to detect and respond to environmental changes. Additionally, cells often need to communicate with one another. Unicellular and multicellular organisms use a variety of cell signaling mechanisms to communicate with the environment.
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The Phragmoplast01:59

The Phragmoplast

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[Blockade of proteasome activity disturbs the rhythm of synthesis of the protein marker of direct cell-cell interactions].

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Related Experiment Video

Updated: Jun 18, 2026

Single-cell Microinjection for Cell Communication Analysis
09:59

Single-cell Microinjection for Cell Communication Analysis

Published on: February 26, 2017

[The cell theory. Progress in studies on cell-cell communications].

V Ia Brodskiĭ

    Ontogenez
    |November 10, 2009
    PubMed
    Summary

    Cell communities, not just individual cells, form the functional units of multicellular organisms. Cell communication and signaling systems enhance organism function, supporting the foundational cell theory.

    Area of Science:

    • Cell Biology
    • Developmental Biology
    • Evolutionary Biology

    Context:

    • The cell theory, stating 'omnis cellula e cellula,' remains a cornerstone of biology.
    • Multicellular organisms exhibit complex organization beyond simple cell aggregation.

    Purpose:

    • To explore the role of cell communities and cell-cell communication in multicellular organisms.
    • To examine how these interactions supplement and develop the classical cell theory.

    Summary:

    • Current data support the cell theory's principle of cell reproduction across generations.
    • Cellular communities, integrated by signaling systems, function as key units in multicellular organisms, including mammals.
    • Multinucleated cells and syncytial structures represent adaptations for optimal function and highlight cell-cell communication.

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    Last Updated: Jun 18, 2026

    Single-cell Microinjection for Cell Communication Analysis
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    Published on: February 26, 2017

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    Published on: July 17, 2016

    Impact:

    • Reinforces the cell theory while acknowledging the integrated nature of multicellular life.
    • Highlights the significance of cell-cell communication in organism development and function.
    • Provides a framework for understanding complex biological systems from a cellular perspective.