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Multiple Choice
Which of the following is one difference between prokaryotes and eukaryotes?
A
Prokaryotes lack a membrane-bound nucleus, while eukaryotes have one.
B
Both prokaryotes and eukaryotes lack ribosomes.
C
Eukaryotes have circular DNA, while prokaryotes have linear DNA.
D
Prokaryotes contain mitochondria, while eukaryotes do not.
Verified step by step guidance
1
Step 1: Begin by understanding the fundamental differences between prokaryotic and eukaryotic cells. Prokaryotes are simpler organisms, typically unicellular, and lack membrane-bound organelles, including a nucleus. Eukaryotes, on the other hand, are more complex and have membrane-bound organelles, including a nucleus.
Step 2: Evaluate the first statement: 'Prokaryotes lack a membrane-bound nucleus, while eukaryotes have one.' This is correct because prokaryotes have their genetic material in a nucleoid region, while eukaryotes store their DNA within a membrane-bound nucleus.
Step 3: Analyze the second statement: 'Both prokaryotes and eukaryotes lack ribosomes.' This is incorrect because both prokaryotes and eukaryotes possess ribosomes, which are essential for protein synthesis. However, the structure of ribosomes differs slightly between the two.
Step 4: Examine the third statement: 'Eukaryotes have circular DNA, while prokaryotes have linear DNA.' This is incorrect because prokaryotes typically have circular DNA, while eukaryotes have linear DNA organized into chromosomes.
Step 5: Review the fourth statement: 'Prokaryotes contain mitochondria, while eukaryotes do not.' This is incorrect because mitochondria are membrane-bound organelles found only in eukaryotic cells. Prokaryotes do not have mitochondria; they perform energy production processes like cellular respiration in the cytoplasm or across their cell membrane.