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Cell Motility through Blebbing01:16

Cell Motility through Blebbing

Blebs are a type of membrane protrusion formed by the internal hydrostatic pressure of the cytoplasm. Blebs are observed in several cell types, including fibroblasts, immune cells, and single-celled organisms like the amoeba. The primary function of blebs is cell locomotion and apoptosis, but they are also found during necrosis and cell division. The life cycle of a bleb comprises an initiation phase followed by the expansion and retraction phases.
Blebbing Through the Matrix
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Cell Migration01:19

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Unrenewable Cells00:50

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Silicon Microchips for Manipulating Cell-cell Interaction
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Silicon Microchips for Manipulating Cell-cell Interaction

Published on: August 30, 2007

The redoubtable cell.

Andrew Reynolds1

  • 1Department of Philosophy and Religious Studies, Cape Breton University, 1250 Grand Lake Road, Sydney, NS B1P 6L2, Canada. andrew_reynolds@cbu.ca

Studies in History and Philosophy of Biological and Biomedical Sciences
|October 12, 2010
PubMed
Summary
This summary is machine-generated.

The cell theory, stating all life has cells, remains a cornerstone of biology despite ongoing criticism. Its universality is achieved through abstraction, yet it

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Last Updated: Jun 8, 2026

Silicon Microchips for Manipulating Cell-cell Interaction
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Cell Squeezing as a Robust, Microfluidic Intracellular Delivery Platform
08:02

Cell Squeezing as a Robust, Microfluidic Intracellular Delivery Platform

Published on: November 7, 2013

Title Cell Encapsulation by Droplets
13:10

Title Cell Encapsulation by Droplets

Published on: October 1, 2007

Area of Science:

  • Cell Biology
  • History of Science
  • Philosophy of Biology

Background:

  • The cell theory posits that all living organisms are composed of one or more cells, the fundamental unit of life.
  • Established in the 19th century, it is a foundational principle in biological sciences.

Observation:

  • Despite its celebrated status, the cell theory has encountered persistent criticism from some biologists since its inception.
  • This criticism highlights the complex nature of the cell theory and the underlying cell concept.

Findings:

  • Scientific laws, including the cell theory, achieve universality through abstraction, potentially overlooking exceptions.
  • The cell theory can be viewed as a broadly applicable empirical generalization, valuable even with acknowledged exceptions.

Implications:

  • Debates persist regarding whether the cell or organism perspective offers a more accurate account of biological phenomena.
  • These discussions reveal the inherent tension between scientific conceptualization and the accurate representation of reality for unified understanding.