Multiple Choice
Plant and animal cells are classified as what type of cell?
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5. Cell Components
Prokaryotic & Eukaryotic Cells
Multiple Choice
Which of the following statements concerning cells of bacteria and archaea is correct?
A
Both bacteria and archaea lack a membrane-bound nucleus.
B
Archaea possess peptidoglycan in their cell walls, but bacteria do not.
C
Bacteria have membrane-bound organelles, while archaea do not.
D
Both bacteria and archaea are classified as eukaryotes.
Verified step by step guidance1
Understand the classification of bacteria and archaea: Both bacteria and archaea are classified as prokaryotes, not eukaryotes. Prokaryotes lack a membrane-bound nucleus and membrane-bound organelles, which are characteristic of eukaryotic cells.
Analyze the structure of bacterial and archaeal cell walls: Bacteria typically have peptidoglycan in their cell walls, which provides structural support. Archaea, on the other hand, do not possess peptidoglycan; their cell walls are composed of other molecules such as pseudopeptidoglycan or polysaccharides.
Clarify the presence of membrane-bound organelles: Neither bacteria nor archaea have membrane-bound organelles. This is a defining feature of prokaryotic cells, distinguishing them from eukaryotic cells.
Evaluate the statement about the membrane-bound nucleus: Both bacteria and archaea lack a membrane-bound nucleus. Their genetic material is located in a region called the nucleoid, which is not enclosed by a membrane.
Compare the classification of bacteria and archaea: Both bacteria and archaea are prokaryotes, meaning they are not classified as eukaryotes. This distinction is based on cellular structure and organization.
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