SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Absence of cell organelles
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Absence of nucleus
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Presence of 70S Ribosome
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All the above
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Detailed explanation-1: -A nucleoid area, DNA and RNA serving as the cells’ genetic building blocks, ribosomes producing proteins, and a cytoplasm containing the cytoskeleton that arranges cellular components are all features of prokaryotic cells.
Detailed explanation-2: -Nucleus and nuclear membrane are not present but it consists of nucleoid region. Membrane-bound organelles (like Golgi complex, mitochondria, chloroplast etc.) are absent.
Detailed explanation-3: -The characteristics of prokaryotic cells are: Membrane bound cell organelles such as Mitochondria, Golgi apparatus, Chloroplasts are absent. A membrane bound well defined nucleus is absent. Genetic material is circular DNA and occurs naked in the cell cytoplasm.
Detailed explanation-4: -In Summary: Comparing Prokaryotic and Eukaryotic Cells All prokaryotes have plasma membranes, cytoplasm, ribosomes, a cell wall, DNA, and lack membrane-bound organelles.
Detailed explanation-5: -They are small in size 0.1 mm to 10 mm. They do not possess membrane-bound organelles. They have single circular DNA as genetic material and plasmid. They possess mesosomes for respiration. Some are autotrophic and some are saprotrophic.