70S sized ribosomes are found in the cytoplasm of:
Correct answer: D. Bacteria
- A. Algae
- B. Fungi
- C. Protozoans
- D. Bacteria
Explanation
Eukaryotic cells have mitochondria and chloroplasts as organelles and those organelles additionally have ribosomes 70S. However, eukaryotic cells (algae, fungi, protozoans) have 80S ribosomes in their cytoplasm, while prokaryotic cells just have 70S ribosomes. Hence, Option D is correct.
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Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
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