Question

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identify common cell structures
which cell structures are seen in prokaryotic and eukaryotic cells? choose four correct answers.
options (from image): mitochondria, cell membrane, cytoplasm, dna, nucleus, ribosomes

Explanation:

To determine common cell structures in prokaryotic and eukaryotic cells, we analyze each option:

• Mitochondria: Only in eukaryotes (prokaryotes lack membrane - bound organelles like mitochondria).
• Cell membrane: Both prokaryotic and eukaryotic cells have a cell membrane to enclose the cell.
• Cytoplasm: Both cell types have cytoplasm, the semi - fluid matrix inside the cell.
• DNA: Both prokaryotes (have circular DNA) and eukaryotes (have linear DNA in the nucleus and other forms) have DNA as genetic material.
• Nucleus: Only in eukaryotes (prokaryotes have a nucleoid region without a nuclear membrane).
• Ribosomes: Both prokaryotic and eukaryotic cells have ribosomes for protein synthesis (prokaryotic ribosomes are 70S, eukaryotic are 80S, but they exist in both).

So the four common structures are cell membrane, cytoplasm, DNA, and ribosomes.

Answer:

The four correct answers are:

• cell membrane
• cytoplasm
• DNA
• ribosomes