Which of the following is NOT a characteristic of prokaryotic cells?

Question

BlackTom AI · Accepted Answer

The question asks which item is NOT a characteristic of prokaryotic cells, and the provided answer indicates 'Endoplasmic reticulum.'
First, consider what prokaryotic cells typically feature: they lack a true nucleus, do not have membrane-bound organelles, have lack of internal compartmentalization, and possess simplicity in their internal structure compared to eukaryotic cells.
The endoplasmic reticulum (ER) is a membrane-bound organelle that forms a network within eukaryotic cells. It participates in protein synthesis (rough ER) and lipid synthesis (smooth ER) and is part of the endomembrane system. Prokaryotes, by contrast, do not possess such membrane-bound organelles or an extensive internal membrane system. Therefore, the presence of an ER is incompatible with prokaryotic cellular organization, making 'Endoplasmic reticulum' a NOT characteristic of prokaryotic cells.
However, there are no alternative answer choices provided in the list to compare against. In a standard multiple-choice setup, each option would be weighed for a true characteristic of prokaryotes versus a false one, but with only a single option presented, we can still justify why this item is the one that does not describe prokaryotes by contrasting it with the core features of prokaryotic cell structure.
To summarize the reasoning for this option: the ER is a hallmark of eukaryotic cells, associated with a membrane-bound internal network, whereas prokaryotes lack such structures, aligning with why this option is not a characteristic of prokaryotic cells.

2025 T1 DP DPST1051 BLSC1342 Molecules, Cells & Genes

Which of the following is NOT a characteristic of prokaryotic cells?

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