give some works of prokariyotic
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Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.
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Key points:
Prokaryotes are single-celled organisms belonging to the domains Bacteria and Archaea.
Prokaryotic cells are much smaller than eukaryotic cells, have no nucelus, and lack organelles.
All prokaryotic cells are encased by a cell wall. Many also have a capsule or slime layer made of polysaccharide.
Prokaryotes often have appendages (protrusions) on their surface. Flagellaand some pili are used for locomotion, fimbriae help the cell stick to a surface, and sex pili are used for DNA exchange.
Most prokaryotic cells have a single circular chromosome. They may also have smaller pieces of circular DNA called plasmids.
What are prokaryotes?
Prokaryotes are microscopic organisms belonging to the domains Bacteria and Archaea, which are two out of the three major domains of life. (Eukarya, the third, contains all eukaryotes, including animals, plants, and fungi.) Bacteria and archaea are single-celled, while most eukaryotes are multicellular.
Fossils show that prokaryotes were already here on Earth 3.53.53, point, 5 billion years ago, and scientists think that prokaryotic ancestors gave rise to all of the life forms present on Earth today^{2,3}2,3start superscript, 2, comma, 3, end superscript.
Prokaryotes are single-celled organisms belonging to the domains Bacteria and Archaea.
Prokaryotic cells are much smaller than eukaryotic cells, have no nucelus, and lack organelles.
All prokaryotic cells are encased by a cell wall. Many also have a capsule or slime layer made of polysaccharide.
Prokaryotes often have appendages (protrusions) on their surface. Flagellaand some pili are used for locomotion, fimbriae help the cell stick to a surface, and sex pili are used for DNA exchange.
Most prokaryotic cells have a single circular chromosome. They may also have smaller pieces of circular DNA called plasmids.
What are prokaryotes?
Prokaryotes are microscopic organisms belonging to the domains Bacteria and Archaea, which are two out of the three major domains of life. (Eukarya, the third, contains all eukaryotes, including animals, plants, and fungi.) Bacteria and archaea are single-celled, while most eukaryotes are multicellular.
Fossils show that prokaryotes were already here on Earth 3.53.53, point, 5 billion years ago, and scientists think that prokaryotic ancestors gave rise to all of the life forms present on Earth today^{2,3}2,3start superscript, 2, comma, 3, end superscript.
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