Question

which of the following structures is involved in cell movement in some prokaryotic cells? cilia fimbriae flagella pili

Explanation:

• Cilia: In prokaryotes, cilia - like structures (though structurally different from eukaryotic cilia) can be involved in movement. For example, some bacteria have cilia - like appendages that help in locomotion.
• Flagella: Prokaryotic flagella are long, whip - like structures that rotate to propel the cell. They are a well - known structure for cell movement in prokaryotes.
• Fimbriae: These are short, hair - like structures mainly involved in attachment (e.g., to surfaces or host cells) rather than movement.
• Pili: Similar to fimbriae in some functions (e.g., attachment), and also involved in processes like conjugation (DNA transfer) but not primarily for movement.

Answer:

Cilia and Flagella.