Abeka Biology Test 3 Practice

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Which of the following statements correctly contrasts prokaryotic and eukaryotic cells?

Prokaryotes lack a nucleus and membrane-bound organelles, are usually smaller, and divide by binary fission; eukaryotes have a nucleus and membrane-bound organelles, are larger, and divide by mitosis.

Prokaryotes have a nucleus; eukaryotes do not.

Prokaryotes and eukaryotes are the same in size and division method.

Eukaryotes lack membrane-bound organelles.

Understanding the difference between prokaryotic and eukaryotic cells is about how cell structure relates to function. Prokaryotes organize their genetic material in a nucleoid region, lack a true nucleus and membrane-bound organelles, and are usually smaller; they typically reproduce by binary fission. Eukaryotes have a true nucleus enclosed by a nuclear membrane and contain many membrane-bound organelles such as mitochondria and, in plants and algae, chloroplasts; they are generally larger and divide by mitosis for growth and tissue renewal (with meiosis for sexual reproduction). Because eukaryotic cells do have membrane-bound organelles, the statement claiming they lack them isn’t correct.

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