TAILIEUCHUNG - Introduce of microbiology: Part 2
(BQ) Continued part 1, part 2 of the document Introduce of microbiology has contents: Meet the prokaryotes, say hello to the eukaryotes, examining the vastness of viruses, fighting microbial diseases, teasing apart communities, synthesizing life, ten great uses for microbes, and other contents. Invite you to refer. | Introduce of microbiology: Part 2 4 Meeting the Microbes IN THIS PART . . . Get acquainted with microorganisms from the three domains of life — from those we know a lot about (like bacteria, viruses, fungi, and protists) to those we know much less about (like the archaea and sub-viral particles). Get friendly with the many kinds of bacteria, whether they’re important for geochemical cycles or human health. Get an overview of eukaryotic microorganisms including the yeasts, fungi, and the great diversity of protists that include the algae, the phytoplankton, and the amoeba, among others. Discover the structures and behaviors of the viruses, including those that infect plants, animals, and bacteria. IN THIS CHAPTER »» Becoming familiar with the Bacteria »» Introducing the Archaea Chapter 12 Meet the Prokaryotes A long with viruses, the prokaryotes make up most of the evolutionary diversity on the planet. A rough estimate puts the number of bacterial and archaeal cells on earth at around × 1030. The number of species is harder to pin down. Some scientists think that there are far more prokaryotic species than all eukaryotic organisms combined, whereas others think that it’s the reverse. Either way, more prokaryotic species are being discovered every year, and it’s likely that we’ve just hit the tip of the diversity iceberg! Prokaryote is sort of a misnomer because it’s used to talk about all non-nucleated cells, as opposed to eukaryotes, which have a nucleus and organelles, among other things. Both the Bacteria and the Archaea fall into this category, but they’re more distantly related to one another than are the Archaea and the Eukaryota (the third major domain of life) and so they technically shouldn’t be grouped together. Because the Bacteria and the Archaea have many other similarities, it’s simply more convenient to consider them at the same time in this book. However, archaea and bacteria .
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