QUESTION IMAGE
Question
which structures are found in each cell type? complete the table. prokaryotic cells eukaryotic cells rough endoplasmic reticulum ribosomes dna nucleus submit
Brief Explanations
- Rough endoplasmic reticulum: Prokaryotic cells lack membrane - bound organelles like the rough endoplasmic reticulum. Eukaryotic cells have it as part of their endomembrane system.
- Ribosomes: Both prokaryotic and eukaryotic cells need ribosomes for protein synthesis. Prokaryotic ribosomes are 70S and eukaryotic are 80S (but they are present in both).
- DNA: All cells (prokaryotic and eukaryotic) have DNA as their genetic material.
- Nucleus: Prokaryotic cells have a nucleoid (a region with DNA) but no true nucleus. Eukaryotic cells have a membrane - bound nucleus.
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| Prokaryotic cells | Eukaryotic cells | |
|---|---|---|
| Ribosomes | $\square$ (present) | $\square$ (present) |
| DNA | $\square$ (present) | $\square$ (present) |
| Nucleus | $\square$ (not present) | $\square$ (present) |