Question

which structures are found in each cell type? complete the table.
rough endoplasmic reticulum
smooth endoplasmic reticulum
cytoplasm
cell membrane

Explanation:

• Rough endoplasmic reticulum: Present in eukaryotic cells (has ribosomes on its surface for protein synthesis). Prokaryotic cells lack membrane - bound organelles like this.
• Smooth endoplasmic reticulum: A eukaryotic cell organelle (involved in lipid synthesis etc.). Prokaryotes do not have it as they lack complex membrane - bound organelles.
• Cytoplasm: Both cell types have cytoplasm. In prokaryotes, it is the site of metabolic reactions (e.g., glycolysis). In eukaryotes, it houses organelles and is part of many cellular processes.
• Cell membrane: A universal feature. In prokaryotes, it is involved in processes like respiration (in some bacteria). In eukaryotes, it controls the movement of substances in and out of the cell and is involved in cell signaling.

Answer:

• Rough endoplasmic reticulum: Prokaryotic cells (✗), Eukaryotic cells (✓)
• Smooth endoplasmic reticulum: Prokaryotic cells (✗), Eukaryotic cells (✓)
• Cytoplasm: Prokaryotic cells (✓), Eukaryotic cells (✓)
• Cell membrane: Prokaryotic cells (✓), Eukaryotic cells (✓)