Question

which structures are found in each cell type? complete the table.
nucleus
rough endoplasmic reticulum
ribosomes
dna

Explanation:

• Nucleus: Prokaryotic cells lack a membrane - bound nucleus. Their DNA is in the nucleoid region. Eukaryotic cells have a true nucleus.
• Rough endoplasmic reticulum: It is an organelle with ribosomes attached. Prokaryotic cells lack membrane - bound organelles like the rough ER. Eukaryotic cells have it.
• Ribosomes: Both cell types need to synthesize proteins. Prokaryotic ribosomes are 70S and eukaryotic are 80S, but both have ribosomes.
• DNA: Both prokaryotic (in nucleoid) and eukaryotic (in nucleus, mitochondria, chloroplasts) cells have DNA as genetic material.

Answer:

• Nucleus: Prokaryotic cells (no), Eukaryotic cells (yes)
• Rough endoplasmic reticulum: Prokaryotic cells (no), Eukaryotic cells (yes)
• Ribosomes: Prokaryotic cells (yes), Eukaryotic cells (yes)
• DNA: Prokaryotic cells (yes), Eukaryotic cells (yes)