What is the main difference between prokaryotes and eukaryotes?
Correct answer: C. Prokaryotes do not have internal membranes bound organelles
- A. Prokaryotes cannot undergo cell division
- B. Prokaryotes have no DNA
- C. Prokaryotes do not have internal membranes bound organelles
- D. Prokaryotes have no cytosol
Explanation
The main difference between prokaryotic and eukaryotic cells is that prokaryotes do not have internal membrane-bound organelles, such as a nucleus. Instead, their genetic material is located in a region called the nucleoid. On the other hand, eukaryotic cells have a well-defined nucleus and other membrane-bound organelles like mitochondria and the endoplasmic reticulum. Option A is incorrect because prokaryotes do undergo cell division, although by a different mechanism than eukaryotes. Option B is incorrect because prokaryotes do have DNA. Option D is incorrect because prokaryotes have cytosol, which is integral to their cellular structure.
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About Cell Structure and Function
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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