Which of the following is found in a eukaryotic cell but not in a prokaryotic cell?

• A. Nucleus
• B. Cytoplasm
• C. Cell membrane
• D. Ribosome

Answer: (A)

Verified step by step guidance

1. Understand the basic differences between eukaryotic and prokaryotic cells. Eukaryotic cells have a defined nucleus, while prokaryotic cells do not.
2. Identify the structures listed in the options: Nucleus, Cytoplasm, Cell membrane, and Ribosome.
3. Recall that the nucleus is a membrane-bound organelle that contains the cell's genetic material and is a defining feature of eukaryotic cells.
4. Recognize that cytoplasm, cell membrane, and ribosomes are present in both eukaryotic and prokaryotic cells.
5. Conclude that the nucleus is the structure found in eukaryotic cells but not in prokaryotic cells.