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  2. Cellular organizational structure - Wikipedia

    en.wikipedia.org/wiki/Cellular_organizational...

    A non-biological entity with a cellular organizational structure (also known as a cellular organization, cellular system, nodal organization, nodal structure, et cetera) is set up in such a way that it mimics how natural systems within biology work, with individual 'cells' or 'nodes' working somewhat independently to establish goals and tasks ...

  3. Biological organisation - Wikipedia

    en.wikipedia.org/wiki/Biological_organisation

    Each level in the hierarchy represents an increase in organisational complexity, with each "object" being primarily composed of the previous level's basic unit. [2] The basic principle behind the organisation is the concept of emergence —the properties and functions found at a hierarchical level are not present and irrelevant at the lower levels.

  4. Eukaryotic chromosome structure - Wikipedia

    en.wikipedia.org/wiki/Eukaryotic_chromosome...

    The most basic level of DNA condensation is the wrapping of DNA around the histone core proteins. Higher-order packaging is accomplished by specialized proteins that bind and fold the DNA. This generates a series of loops and coils that provide increasingly higher levels of organization and prevent the DNA from becoming tangled and unmanageable ...

  5. Integrative level - Wikipedia

    en.wikipedia.org/wiki/Integrative_level

    The levels concept is an intellectual framework for structuring reality. It arranges all entities, structures, and processes in the universe, or in a certain field of study, into a hierarchy, typically based on how complex their organization is. When arranged this way, each entity is three things at the same time: It is made up of parts from ...

  6. Fluid mosaic model - Wikipedia

    en.wikipedia.org/wiki/Fluid_mosaic_model

    Fluid mosaic model of a cell membrane. The fluid mosaic model explains various characteristics regarding the structure of functional cell membranes.According to this biological model, there is a lipid bilayer (two molecules thick layer consisting primarily of amphipathic phospholipids) in which protein molecules are embedded.

  7. Category:Levels of organization (Biology) - Wikipedia

    en.wikipedia.org/wiki/Category:Levels_of...

    Download as PDF; Printable version; ... move to sidebar hide. Help. Pages in category "Levels of organization (Biology)" The following 2 pages are in this category ...

  8. Three-domain system - Wikipedia

    en.wikipedia.org/wiki/Three-domain_system

    The three-domain system adds a level of classification (the domains) "above" the kingdoms present in the previously used five- or six-kingdom systems.This classification system recognizes the fundamental divide between the two prokaryotic groups, insofar as Archaea appear to be more closely related to eukaryotes than they are to other prokaryotes – bacteria-like organisms with no cell nucleus.

  9. Microtubule organizing center - Wikipedia

    en.wikipedia.org/wiki/Microtubule_organizing_center

    The microtubule-organizing center (MTOC) is a structure found in eukaryotic cells from which microtubules emerge. MTOCs have two main functions: the organization of eukaryotic flagella and cilia and the organization of the mitotic and meiotic spindle apparatus, which separate the chromosomes during cell division.