BIOLOGICAL CLASSIFICATION
VIRUSES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which do BOTH prokaryotes and eukaryotes contain?
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nucleus
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mitochondria
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ribosomes
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cell wall
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Explanation:
Detailed explanation-1: -Ribosomes occur both as free particles in prokaryotic and eukaryotic cells and as particles attached to the membranes of the endoplasmic reticulum in eukaryotic cells.
Detailed explanation-2: -All prokaryotes have 70S (where S=Svedberg units) ribosomes while eukaryotes contain larger 80S ribosomes in their cytosol. The 70S ribosome is made up of a 50S and 30S subunits. Ribosomes play a key role in the catalysis of two important and crucial biological processes.
Detailed explanation-3: -Eukaryotes have 80S ribosomes, whereas prokaryotes have 70S ribosomes.
Detailed explanation-4: -Prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA.
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