Which type of cell lacks a membrane-bound nucleus?

• A. Animal cell
• B. Plant cell
• C. Eukaryotic cell
• D. Prokaryotic cell

Answer: (D)

Verified step by step guidance

1. Understand the difference between prokaryotic and eukaryotic cells: Eukaryotic cells have a membrane-bound nucleus, while prokaryotic cells do not.
2. Recall that animal cells and plant cells are both types of eukaryotic cells, meaning they contain a nucleus enclosed by a membrane.
3. Identify that the question asks for the type of cell that lacks a membrane-bound nucleus, which excludes all eukaryotic cells.
4. Recognize that prokaryotic cells, such as bacteria and archaea, have genetic material that is not enclosed within a nuclear membrane.
5. Conclude that the correct answer is a prokaryotic cell because it lacks a membrane-bound nucleus.