In Cell Biology (Class 9 & 11), we study the fundamental units of life and their organelles. Let's cover two very common exam questions regarding the smallest cell in the world and the location of plastids.
PPLO: Pleuropneumonia-Like Organisms (Also known as Mycoplasma).
PPLO Fact: It is the smallest living cell and has no cell wall.
Plastids Location: Found exclusively in Plant cells and algae; absent in Animal cells.
The smallest known living cell in the world is the Mycoplasma bacteria. In older biology textbooks, it is frequently referred to by its abbreviation, PPLO.
Plastids are large, double-membrane cell organelles.
In Biology, PPLO stands for Pleuropneumonia-Like Organisms. It is another name for Mycoplasma, which is the smallest living cell known.
Plastids are cell organelles found exclusively in Plant cells and certain algae. They are completely absent in animal cells.
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