Animal Cells
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What does "CELL" mean?
Usually a microscopic structure containing nuclear and cytoplasmic material enclosed by a semipermeable membrane and, in plants, a cell wall; the basic structural unit of all organisms.
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What is the Latin definition of "CELL"?
The cell (from Latin cella, meaning "small room") is the basic structural, functional, and biological unit of all known living organisms. A cell is the smallest unit of life that can replicate independently, and cells are often called the "building blocks of life". The study of cells is called cell biology.
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Fimbriae: These hollow, hairlike structures made of protein allow bacteria to attach to other cells. A specialized pilus, the reproduction pilus, allows the transfer of plasmid DNA from one bacterial cell to another.
Ribosomes: Ribosomes give the bacteria a grain-like appearance in electron micrographs.
Plasma Membrane: This is much like the plasma membrane of other cells. There are many proteins moving within or upon this layer that are primarily responsible for transport of ions, nutrients and waste across the membrane.
Cell Wall: Made up of peptidoglycan, the cell wall maintains the overall shape of a bacterial cell. The three main shapes in bacteria are spherical, rod-shaped and spiral. Mycoplasma are bacteria that have no cell wall and therefore have no definite shape.
Capsule: This layer of polysaccharide (sometimes proteins) protects the bacterial cell and is often associated with pathogenic bacteria because it serves as a barrier against phagocytosis by white blood cells.
Plasmid: Plasmids are small circular DNA pieces found in the cytoplasm that contain code responsible for antibiotic resistance and other characteristics.
Flagellum: The purpose of flagellum is motility. Flagella are long "motors" which rotate in the cell envelope. Bacteria may have one, a few, or many flagella in different positions on the cell.
Bacteria Cells & Animal Cells
What do bacteria cells and animal cells have in common?
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Bacteria Cells & Animal Cells
What do bacteria cells and animal cells have in common?
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Bacteria Cells vs. Animal Cells
How are bacteria cells different from animal cells?
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Bacteria Cells vs. Plant Cells
How are bacteria cells different from plant cells?
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