Question

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identify common cell structures
prokaryotic and eukaryotic cells
using the drop-down menus, identify the structures common to all cells.
label a
label b
label c
label d

Explanation:

To identify the cell structures common to all cells (prokaryotic and eukaryotic), we analyze each label:

• Label A: The coiled structure is genetic material (DNA). All cells have DNA as genetic info carrier.
• Label B: The outer boundary is the cell membrane (plasma membrane), controlling substance entry/exit, present in all cells.
• Label C: Small dots are ribosomes, which synthesize proteins, found in all cells (prokaryotes have free ribosomes, eukaryotes have free and bound).
• Label D: The fluid - filled interior is the cytoplasm (cytosol + organelles in eukaryotes, cytosol + nucleoid etc. in prokaryotes), present in all cells.

Answer:

• Label A: DNA (Genetic Material)
• Label B: Cell Membrane (Plasma Membrane)
• Label C: Ribosomes
• Label D: Cytoplasm