The size of ribosome in prokaryotic cell is:
Correct answer: C. 70S
- A. 40S
- B. 60S
- C. 70S
- D. 80S
Explanation
70S: This option is correct because prokaryotic cells have ribosomes made up of a small 30S subunit and a large 50S subunit, totaling 70S. The other options are incorrect because the 40S and 60S ribosomes are found in eukaryotic cells, while the 80S ribosome is also specific to eukaryotes.
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About Prokaryotic and Eukaryotic Cells
Prokaryotic cells lack a membrane-bound nucleus and complex membrane-bound organelles, whereas eukaryotic cells contain a nucleus, specialized organelles and a cytoskeleton. Comparisons include DNA organization, ribosomes, cell walls, size, division and examples such as bacteria, archaea, protists, fungi, plants and animals.
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