Question

25 select all the structures that are found in all living cells. cell diagram with labels: nucleus, dna, rna, ribosomes, organelles, proteins, cell membrane. reset text at bottom

Explanation:

1. DNA: All living cells (prokaryotic and eukaryotic) have DNA as genetic material (or in some viruses, but cells have DNA).
2. RNA: Involved in protein synthesis, present in all cells for transcription/translation processes.
3. Ribosomes: Site of protein synthesis, present in both prokaryotic (70S) and eukaryotic (80S) cells.
4. Cell membrane: Separates cell from environment, present in all cells (prokaryotes have cell membrane, eukaryotes too; prokaryotes also have cell wall outside, but membrane is universal).
5. Proteins: Essential for cellular functions (enzymes, structural, etc.), synthesized in all cells.

Structures like nucleus (eukaryotic only), organelles (many prokaryotes lack membrane - bound organelles), and the specific endomembrane structures shown (like ER, Golgi) are not universal.

Answer:

DNA, RNA, Ribosomes, Cell membrane, Proteins