Question

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

cell wall

rough endoplasmic reticulum

mitochondria

Explanation:

• Cell wall: Prokaryotic cells (e.g., bacteria) have a cell wall made of peptidoglycan (in most cases). Plant cells have a cell wall made of cellulose. Animal cells lack a cell wall.
• Rough endoplasmic reticulum: Rough endoplasmic reticulum (RER) is a membrane - bound organelle with ribosomes attached. Prokaryotic cells lack membrane - bound organelles, so they do not have RER. Both plant and animal cells (which are eukaryotic) have RER.
• Mitochondria: Mitochondria are the powerhouses of the cell (site of aerobic respiration). Prokaryotic cells lack membrane - bound organelles, so they do not have mitochondria. Both plant and animal cells (eukaryotic) have mitochondria.

Answer:

	Prokaryotic cells	Plant cells	Animal cells
Rough endoplasmic reticulum	No	Yes	Yes
Mitochondria	No	Yes	Yes