SCIENCE
CELL BIOLOGY
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Eukaryote
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Prokaryote
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Either A or B
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None of the above
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Detailed explanation-1: -Mycoplasma is the smallest prokaryotic organism (0.15 to 0.35 micrometer) that lacks cell wall but have rigid plasma membrane rich in sterols and lipoglycans.
Detailed explanation-2: -Mycoplasmas are the smallest and simplest prokaryotes capable of self-replication, with information provided by a genome which may be as small as 600 kb, estimated to carry less than 500 genes.
Detailed explanation-3: -They are organisms which do not have proper cellular organization i.e they lack cellular organelles and a nucleus and therefore are small in size.
Detailed explanation-4: -Cell Size. At 0.1 to 5.0 m in diameter, prokaryotic cells are significantly smaller than eukaryotic cells, which have diameters ranging from 10 to 100 m ([link]). The small size of prokaryotes allows ions and organic molecules that enter them to quickly diffuse to other parts of the cell.
Detailed explanation-5: -Mycoplasma gallicepticum is the smallest cell. Mycoplasma’s size is 0.2–0.3 m. Mycoplasma are the smallest living organisms on the earth.