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Related Concept Videos

Structural Organization of the Human Body: An Overview01:18

Structural Organization of the Human Body: An Overview

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It is convenient to consider the body's structures in terms of fundamental levels of organization that increase in complexity: subatomic particles, atoms, molecules, organelles, cells, tissues, organs, organ systems, and organisms.
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Biological organization is the classification of biological structures, ranging from atoms at the bottom of the hierarchy to the Earth's biosphere. Each level of the hierarchy represents an increase in complexity that builds upon the previous level.
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Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
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Distribution of Cytoplasmic Content02:33

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Biological macromolecules are organic compounds, predominantly composed of carbon atoms. The carbon atoms are covalently bonded with hydrogen, oxygen, nitrogen, and other minor elements. There are four major biological macromolecule classes: carbohydrates, lipids, proteins, and nucleic acids.
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Updated: Sep 26, 2025

Author Spotlight: Developing Synthetic Cells from Programmable Amphiphilic DNA Nanostructures
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Hierarchical Structures in Macromolecule-Assembled Synthetic Cells.

Xiaolei Yu1, Long Zhou2, Gangyang Wang3

  • 1State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China.

Macromolecular Rapid Communications
|April 21, 2022
PubMed
Summary

Researchers are building complex synthetic cells with hierarchical structures inspired by life. These biomimetic models, focusing on macromolecules, advance origins of life research and offer applications in tissue engineering and disease therapy.

Keywords:
biomimetic systemshierarchical structuresmacromoleculessynthetic cells

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Area of Science:

  • Synthetic biology
  • Origins of life research
  • Biomimetic materials science

Background:

  • Synthetic cell models are crucial for understanding life's origins.
  • Structural complexity in biological systems underpins higher-order functions.
  • Macromolecules play a central role in the organization of living cells.

Purpose of the Study:

  • To review hierarchical structures in synthetic cell models inspired by living systems.
  • To discuss the advantages and functions of biomimetic higher-order structures.
  • To highlight fabrication approaches and applications of these synthetic systems.

Main Methods:

  • Focus on hierarchical structures in synthetic cell models.
  • Analysis of biomimetic structures in membranes, artificial cytoplasm, subcellular compartments, and synthetic tissues.
  • Review of driving forces and fabrication approaches for higher-order structures.

Main Results:

  • Hierarchical structures are key to synthetic cell function, mimicking biological complexity.
  • Biomimetic designs in membranes, cytoplasm, compartments, and tissues offer significant advantages.
  • Various fabrication methods enable the construction of these complex structures.

Conclusions:

  • Hierarchical structures in synthetic cells are essential for mimicking life's complexity.
  • Biomimetic synthetic cells have broad applications in bottom-up biosynthesis, tissue engineering, and therapy.
  • This field bridges fundamental research and applied science, advancing synthetic biology.