prokaryote

(redirected from Prokaryotic cells)
Also found in: Dictionary, Thesaurus, Encyclopedia.

prokaryote

 [pro-kar´e-ōt]
any member of the kingdom Monera; a unicellular organism lacking a true nucleus and nuclear membrane, having genetic material composed of a single loop of naked double-stranded DNA. The microorganisms, comprising the bacteria and blue-green bacteria (formerly blue-green algae), are predominantly unicellular but may have filamentous, mycelial, or colonial forms. Prokaryotes, with the exception of genus Mycoplasma, have a rigid cell wall. adj., adj prokaryot´ic.

pro·kar·y·ote

(prō-kar'ē-ōt),
A member of the superkingdom Prokaryotae; an organismic unit consisting of a single and presumably primitive moneran cell, or a precellular organism, which lacks a nuclear membrane, paired organized chromosomes, a mitotic mechanism for cell division, microtubules, and mitochondria.
See also: Prokaryotae, Monera, eukaryote.
Synonym(s): procaryote

prokaryote

/pro·kary·ote/ (-kar´e-ōt) a unicellular organism lacking a true nucleus and nuclear membrane, having genetic material composed of a single loop of naked double-stranded DNA. Prokaryotes, with the exception of mycoplasmas, have a rigid cell wall.prokaryot´ic

prokaryote

also

procaryote

(prō-kăr′ē-ōt′)
n.
Any of various microorganisms of the domains Archaea and Bacteria, characterized by the absence of a distinct membrane-bound nucleus and membrane-bound organelles and by the simultaneous occurrence of DNA transcription and protein synthesis at the same site, in contrast to eukaryotes. Also called moneran.

pro·kar′y·ot′ic (-ŏt′ĭk) adj.

prokaryote

[prōker′ē·ōt]
Etymology: Gk, protos + karyon
a unicellular organism that does not contain a true nucleus surrounded by a double membrane; a bacterium. Division usually occurs through simple fission. Also spelled procaryote. Compare eukaryote. -prokaryotic, adj.

pro·kar·y·ote

(prō-kar'ē-ōt)
A member of the superkingdom Prokaryotae; an organism consisting of a single cell, or a precellular organism, which lacks a nuclear membrane, paired organized chromosomes, a mitotic mechanism for cell division, microtubules, and mitochondria.
See also: eukaryote
Synonym(s): procaryote.

prokaryote

or

prokaryote

any organism, including those in the domains BACTERIA or ARCHAEA, that lacks a membrane-bound nucleus and has no MITOSIS or MEIOSIS. Organelles such as the MITOCHONDRION and the ENDOPLASMIC RETICULUM are also lacking. Compare EUKARYOTE and See Fig. 155 .

prokaryote

a unicellular organism lacking a true nucleus and nuclear membrane, having genetic material composed of a single molecule of double-stranded DNA. Prokaryotes with the exception of mycoplasmas have a rigid cell wall. Includes the blue-green algae and bacteria—the Cyanophyceae.
References in periodicals archive ?
In the early 1950s, according to Allan and Lutz, the understanding of cancer could be summarized by the following statement: "Cancer cells are cells that have reverted to more primitive cells that behave less like eukaryotic cells and more like prokaryotic cells.
Among specific topics are prokaryotic cells in biotech production, the production of biopharmaceuticals in transgenic animals, drug approval in the European Union and the US, new nanobiotechnology strategies for developing vectors for cancer vaccines, the metabolic engineering of medicinal plants and microrganisms to produce natural products, and xenotransplantation.
The next text is a report about the structure of cells that focuses on the function of the cell nucleus, and the differences between simple prokaryotic cells like bacteria, and complex eukaryotic cells with a distinct nucleus.
Flow cytometry (FCM), a powerful technique for the rapid characterization of cell populations, has been used widely to study prokaryotic cells in different environments (Garcia-Ochoa et al.
International contributors to a dozen chapters examine telomeres' properties, replication strategies, and roles--perhaps as "double agents"--in the evolution of the genome from prokaryotic cells (those without nuclei), and tumor expression/suppression.