SCIENCE
VIRUS AND BACTERIA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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E. coli bacteria
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N. flowerans ameoba
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Yeast, a fungus
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HIV
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Detailed explanation-1: -Prokaryotes do not have a well-defined nucleus and membrane-bound organelles. All bacteria like E. coli, Salmonella typhi and blue-green algae are prokaryotes.
Detailed explanation-2: -Escherichia coli, a prokaryote, is widely used as a research material. A great deal of biological knowledge and experimental methods related to genetics, biochemistry, and molecular biology is accumulated. Many basic genes common to the biogenic of eukaryotes, including humans, are also conserved in E. coli.
Detailed explanation-3: -Prokaryotic cells lack both, a well-defined nucleus and membrane-bound cell organelles. Examples of prokaryotes are blue-green algae, bacteria and mycoplasma.
Detailed explanation-4: -coli does not have a membrane bound nucleus and their genetic material floats over the cell cytoplasm. They also lack cell organelles like ER, Golgi bodies, etc. So, by this it is clear that E. coli is a prokaryotic organism.
Detailed explanation-5: -The cell types in Bacteria and Archaea are considered as “prokaryotes.” The use of the term prokaryote was first introduced as a result of electron microscope studies showing a shared simple cell structure among bacteria (Stanier & Van Niel 1962).