EUKARYOTE Meaning and
Definition
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A eukaryote refers to an organism that possesses a complex and well-defined cellular structure, characterized by the presence of a true nucleus enclosed within a nuclear membrane. It is one of the two main taxonomic domains of life, the other being prokaryotes. Eukaryotic cells are typically larger and more intricate than prokaryotic cells, with a wide range of different organelles and structures that perform specialized functions within the cell.
The defining feature of eukaryotes is the presence of a nucleus, which houses the organism's genetic material in the form of DNA. The nuclear membrane acts as a protective barrier around the nucleus, safeguarding the DNA and separating it from the rest of the cellular components. This compartmentalization allows for greater control and regulation of gene expression within the cell.
In addition to the nucleus, eukaryotic cells also contain various other membrane-bound organelles such as mitochondria, endoplasmic reticulum, Golgi apparatus, and lysosomes. These organelles are responsible for performing specific tasks required for the cell's survival and function. Eukaryotes can be found in diverse forms, including single-celled organisms such as protozoa or multicellular organisms like plants, animals, and fungi.
The evolution of eukaryotes is thought to have arisen from a symbiotic relationship between separate, free-living prokaryotes. This endosymbiotic theory proposes that the eukaryotic cell gradually evolved through the integration of different bacterial species, resulting in the complex structure and organization observed in eukaryotes today.
Common Misspellings for EUKARYOTE
Etymology of EUKARYOTE
The word "eukaryote" originated from the combination of two Greek roots: "eu" meaning "true" or "well", and "karyon" meaning "kernel" or "nucleus". Therefore, "eukaryote" can be roughly translated to "true nucleus". This term was coined in the 20th century by the biologist Edouard Chatton, who used it to describe the type of cells that possess a membrane-bound nucleus and other membrane-bound organelles, distinguishing them from prokaryotic cells that lack a nucleus.
Similar spelling words for EUKARYOTE
