Shared Cellular Structures

Steps:

• Identify features in plant cells: cell wall (cellulose), cell surface membrane (plasma membrane), ribosomes (for protein synthesis).
• Identify features in prokaryotic cells: cell wall (peptidoglycan in bacteria), cell surface membrane (plasma membrane), ribosomes (70S type).
• Compare: all three features are present in both cell types, unlike animal cells which lack cell walls.
• Conclude: features 1, 2, and 3 are common to plant and prokaryotic cells.

Why A is correct:

• Plant and prokaryotic cells both have cell walls for structural support, plasma membranes to regulate transport, and ribosomes for protein synthesis, as defined in cell biology.

Why the others are wrong:

• B: Omits ribosomes, which are essential in both for translation.
• C: Omits cell surface membrane, present in all cells as the plasma membrane.
• D: Omits cell wall, a key feature providing rigidity in both.

Final answer: A