eucaryote


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Related to eucaryote: procaryote

eukaryote

 [u-kar´e-ōt]
an organism of the Eucaryotae, whose cells (eukaryotic cells) have a true nucleus that is bounded by a nuclear membrane, contains the chromosomes, and divides by mitosis. Eukaryotic cells also contain membrane-bound organelles, such as mitochondria, chloroplasts, lysosomes, and the Golgi apparatus. Plants and animals, protozoa, fungi, and algae (except blue-green algae) are eukaryotes. Other organisms (the bacteria) are prokaryotes.

eu·kar·y·ote

(yū-kar'ē-ōt),
1. A cell containing a membrane-bound nucleus with chromosomes of DNA and proteins, generally large (10-100 mcm), with cell division involving a form of mitosis in which mitotic spindles (or some microtubule arrangement) are involved; mitochondria are present, and, in photosynthetic species, plastids are found; undulipodia (cilia or flagella) are of the complex 9+2 organization of microtubules and various proteins. Possession of an eukaryote type of cell characterizes the four kingdoms above the Monera or prokaryote level of complexity: Protoctista, Fungi, Plantae, and Animalia, combined into the superkingdom Eukaryotae.
2. Common name for members of the Eukaryotae.
Synonym(s): eucaryote
[eu- + G. karyon, kernel, nut]

eucaryote

(yo͞o-kăr′ē-ōt′, -ē-ət)
n.
Variant of eukaryote.

eucaryote

see EUKARYOTE.
References in periodicals archive ?
In contrast, algae, fungi and protozoa are eucaryotes, as their nuclei are bound by a nuclear membrane, contain several DNA molecules and undergo division by the well-known process of mitosis.
Before a certain date there were no eucaryotes. The arrival of eucaryotes looks more progressive than it really was because of the failure to depict the persisting hordes of procaryotes.
Humans, earthworms, snails and mushrooms have much in common, because animals, plants and the 'higher protista' (fungi, yeasts and green algae) are all made of eucaryotes cells which have a nucleus containing, amongst other things, the DNA which determines their genetic constitution.
Models of mitochondrial DNA transmission genetics and evolution of higher eucaryotes. Genet.
Several antibiotics, mainly the beta lactams, exert their antimicrobial effect by blocking the synthesis and assembly of peptidoglyca [2,6,11,22,32]The membranes of bacteria are structurally similar to the cell membranes of eucaryotes, except that bacterial membranes consist of saturated or monounsaturated fatty acids (rarely polyunsaturated fatty acids) and do not normally contain sterols.
Like the transgenic procaryotes that preceded them in the repertoire of scientific investigative tools, transgenic eucaryotes will ultimately provide humankind with fundamental and valuable knowledge of the natural world.