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Which type of cell lacks a membrane-bound nucleus?
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1. Overview of Cell Biology
Prokaryotic Cell Architecture
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In the context of prokaryotic cell architecture, which type of cells lack a membrane-bound nucleus?
A
Prokaryotic cells
B
Eukaryotic cells
C
Animal cells
D
Plant cells
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Understand the key difference between prokaryotic and eukaryotic cells: prokaryotic cells do not have a membrane-bound nucleus, while eukaryotic cells do.
Recall that prokaryotic cells include bacteria and archaea, which have their genetic material located in a nucleoid region rather than inside a nucleus.
Recognize that eukaryotic cells, such as animal and plant cells, have a defined nucleus enclosed by a nuclear membrane.
Identify that the question asks specifically for the type of cells lacking a membrane-bound nucleus, which points to prokaryotic cells.
Conclude that among the options given, 'Prokaryotic cells' is the correct answer because they lack a membrane-bound nucleus.
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