In which way are bacteria and eukaryotes the same?

• A. Both contain membrane-bound organelles such as mitochondria.
• B. Both reproduce exclusively by mitosis.
• C. Both use ribosomes to synthesize proteins.
• D. Both have their DNA enclosed within a nuclear membrane.

Answer: (C)

Verified step by step guidance

1. Step 1: Understand the key structural and functional differences between bacteria and eukaryotes. Bacteria are prokaryotes, meaning they lack membrane-bound organelles and a true nucleus, while eukaryotes have these features.
2. Step 2: Analyze the options given: membrane-bound organelles like mitochondria are present only in eukaryotes, so this cannot be a similarity.
3. Step 3: Consider reproduction methods: bacteria reproduce mainly by binary fission, not mitosis, which is a process specific to eukaryotic cells.
4. Step 4: Examine the DNA organization: eukaryotes have DNA enclosed within a nuclear membrane, whereas bacterial DNA is not enclosed in a nucleus.
5. Step 5: Recognize that both bacteria and eukaryotes use ribosomes to synthesize proteins, although their ribosomes differ in size and structure, this fundamental process is shared.