Question

which structures are found in each cell type? complete the table

Explanation:

• Prokaryotic cells lack membrane - bound organelles. Eukaryotic cells have membrane - bound organelles.
• The smooth endoplasmic reticulum is a membrane - bound organelle. Prokaryotic cells lack it, while eukaryotic cells (specifically animal and plant cells) have it.
• Prokaryotic cells have a single, circular chromosome. Eukaryotic cells have linear chromosomes.
• Prokaryotic cells have a continuous loop of chromosomal DNA. Eukaryotic cells have linear DNA molecules (chromosomes) rather than a continuous loop for the main chromosomal DNA (although mitochondria and chloroplasts in eukaryotes have circular DNA, but the question is likely referring to the nuclear/chromosomal DNA in general for the comparison).

Answer:

• Membrane - bound organelles: Prokaryotic cells (no), Eukaryotic cells (yes)
• Smooth endoplasmic reticulum: Prokaryotic cells (no), Eukaryotic cells (yes)
• Linear chromosomes: Prokaryotic cells (no), Eukaryotic cells (yes)
• Continuous loop of chromosomal DNA: Prokaryotic cells (yes), Eukaryotic cells (no)