Give at least one species of bacterium for every ultrastructure studied?

Answers:
Cellular Ultrastructure
[Back to Microscopy and Cells] Eukaryotic Cells Prokaryotic Cells Cell Fractionation All living things are made of cells, and cells are the smallest units that can be alive. Life on Earth is classified into five kingdoms, and they each have their own characteristic kind of cell. However the biggest division is between the cells of the prokaryote kingdom (the bacteria) and those of the other four kingdoms (animals, plants, fungi and protoctista), which are all eukaryotic cells. Prokaryotic cells are smaller and simpler than eukaryotic cells, and do not have a nucleus. Prokaryote = "before carrier bag" i.e. without a nucleus
Eukaryote = "good carrier bag" i.e. with a nucleusMAJOR GROUPS OF PROKARYOTES
漏 2004 Kenneth Todar University of Wisconsin-Madison Department of Bacteriology
Figure 0. The Phylogenetic Tree of Life based on Comparative ssrRNA Sequencing.The rooted Tree lands the prokaryotes in two Domains, Archaea and Bacteria. At a taxonomic level, organisms at the tips of the Archaeal branches represent Orders; the tips of the bacterial branches are Phyla. On the Archaeal limb, the three physiological groups are evident in the names: "thermo" and "pyro" for the extreme thermophiles; "methano" for the methanogens; and the extreme "halophiles". The most important, best known, and diverse groups branching off of the Bacterial limb are the Cyanobacteria, Proteobacteria and Gram positives.
The prokaryotes consist of millions of genetically-distinct unicellular organisms. What they lack in structural diversity, so well-known among eukaryotes (including the protista), they make up for in their physiological diversity. It is often a particular physiological trait that unifies and distinguishes a particular group of prokaryotes to microbiologists. In Bergey's Manual of Determinative Bacteriology (1994), the identifiable groups of prokaryotes are assembled based on easily-observed phenotypic characteristics such as Gram stain, morphology (rods, cocci, etc), motility, structural features (e.g. spores, filaments, sheaths, appendages, etc.), and on distinguishing physiological features (e.g. anoxygenic photosynthesis, anaerobiasis, methanogenesis, lithotrophy, etc.). Nowadays,this type of informal classification is being abandoned in favor of hierarchal taxonomic schemes based on comparative genetic analysis of the nucleotide sequences of the small subunit ribosomal RNA that is contained in all cellular organisms. In the Second edition of Bergey's Manual of Systematic Bacteriology (2001), as well as the Third edition of The Prokaryotes, phylogeny dominates the classification schemes. Such an approach generates the Phylogentic Tree of Life (above) that lands the prokaryotes in two Domains, Archaea and Bacteria. At a taxonomic level, organisms at the tips of the archael branches represent Orders; The tips of the bacterial branches are Phyla. More information on the taxonomy, phylogeny and classification of prokaryotes is given in the references at the bottom of this page. Also, an excellent article online that integrates phylogeny with classification of prokaryotes is Classification and Phylogeny by Gary Olsen. In the ensuing description of prokaryotes, groups of organisms are placed under trivial headings based on common structural, biochemical or ecological properties. This does not imply close genetic relatedness among different genera in a group. Sometimes, all of the members of a group share a close genetic relatedness; in other cases, members of a group are genetically-unrelated, even to an extent that is greater than exists among all members of the Eukaryotic domain. Also herein, some prokaryotes are in more than one group, and some groups consist of both Archaea and Bacteria.

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You didn't say please.

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someone didnt do their homework.

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As I understand. an "ultrastructure" is a cell organelle.And, bacteria being prokaryotic cells, do not have any cell organelles. The only ultrastructure you can study on them is perhaps, flagella (e.g. E. coli), 70S ribosomes or cytoskeleton (which too, is not like the eukaryotic cytoskeleton. but similar!).

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