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2. Cell-free system - Wikipedia

   en.wikipedia.org/wiki/Cell-free_system

   A cell-free system is an in vitro tool widely used to study biological reactions that happen within cells apart from a full cell system, thus reducing the complex interactions typically found when working in a whole cell. [1]

3. List of model organisms - Wikipedia

   en.wikipedia.org/wiki/List_of_model_organisms

   Stentor coeruleus, used in molecular biology (its genome has been sequenced), [5] and is studied as a model of single-cell regeneration.; Dictyostelium discoideum, used in molecular biology and genetics (its genome has been sequenced), and is studied as an example of cell communication, differentiation, and programmed cell death.

4. Cell-free protein synthesis - Wikipedia

   en.wikipedia.org/wiki/Cell-free_protein_synthesis

   Cell-free protein synthesis, also known as in vitro protein synthesis or CFPS, is the production of protein using biological machinery in a cell-free system, that is, without the use of living cells. The in vitro protein synthesis environment is not constrained by a cell wall or homeostasis conditions necessary to maintain cell viability. [ 1 ]

5. Biological system - Wikipedia

   en.wikipedia.org/wiki/Biological_system

   Biological organization spans several scales and are determined based different structures depending on what the system is. [1] Examples of biological systems at the macro scale are populations of organisms. On the organ and tissue scale in mammals and other animals, examples include the circulatory system, the respiratory system, and the ...

6. 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 ...

7. Cell theory - Wikipedia

   en.wikipedia.org/wiki/Cell_theory

   This was a major advance in the field of biology since little was known about animal structure up to this point compared to plants. From these conclusions about plants and animals, two of the three tenets of cell theory were postulated. 1. All living organisms are composed of one or more cells 2. The cell is the most basic unit of life

8. Systems biology - Wikipedia

   en.wikipedia.org/wiki/Systems_biology

   Systems biology can be considered from a number of different aspects. As a field of study, particularly, the study of the interactions between the components of biological systems, and how these interactions give rise to the function and behavior of that system (for example, the enzymes and metabolites in a metabolic pathway or the heart beats).

9. Non-cellular life - Wikipedia

   en.wikipedia.org/wiki/Non-cellular_life

   Non-cellular life, also known as acellular life, is life that exists without a cellular structure for at least part of its life cycle. [1] Historically, most definitions of life postulated that an organism must be composed of one or more cells, [2] but, for some, this is no longer considered necessary, and modern criteria allow for forms of life based on other structural arrangements.