Prokaryote structure (article) | Khan Academy
https://www.khanacademy.org/science/ap-biology/gene-expression-and-regulation/dna-and-rna-structure/a/prokaryote-structure
OverviewKey points:IntroductionWhat are prokaryotes?Prokaryotes vs. eukaryotesThe capsuleThe cell wallThe plasma membraneAppendagesChromosome and plasmids•Prokaryotes are single-celled organisms belonging to the domains Bacteria and Archaea.•Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and lack organelles.•All prokaryotic cells are encased by a cell wall. Many also have a capsule or slime layer made …•Prokaryotes often have appendages (protrusions) on their surface. Flagella and some pili are used for locomotion, fimbriae help the cell stick to a surface, and sex pili are used for DNA exchange.See more on khanacademy.org •Prokaryotes are single-celled organisms belonging to the domains Bacteria and Archaea.•Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and lack organelles. •All prokaryotic cells are encased by a cell wall. Many also have a capsule or slime layer made …•Prokaryotes often have appendages (protrusions) on their surface. Flagella and some pili are used for locomotion, fimbriae help the cell stick to a surface, and sex pili are used for DNA exchange.
•Prokaryotes are single-celled organisms belonging to the domains Bacteria and Archaea.•Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and lack organelles.
•All prokaryotic cells are encased by a cell wall. Many also have a capsule or slime layer made …•Prokaryotes often have appendages (protrusions) on their surface. Flagella and some pili are used for locomotion, fimbriae help the cell stick to a surface, and sex pili are used for DNA exchange.
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