Hairlike projections that extend from the plasma membrane and are used for locomotion are called?

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Multiple Choice

Hairlike projections that extend from the plasma membrane and are used for locomotion are called?

Explanation:
Hairlike projections from the cell surface that move to propel the cell or to move surrounding fluids are cilia. They are many, tiny "hairs" that beat in coordinated waves, either pushing the cell forward or driving fluid past it. Flagella are similar structures but longer and fewer in number, producing propulsion with a whip-like motion. Pseudopodia are temporary cytoplasmic extensions used by some cells to crawl, not hairlike projections, and microvilli are small projections that increase surface area for absorption rather than movement. So the description matches cilia.

Hairlike projections from the cell surface that move to propel the cell or to move surrounding fluids are cilia. They are many, tiny "hairs" that beat in coordinated waves, either pushing the cell forward or driving fluid past it. Flagella are similar structures but longer and fewer in number, producing propulsion with a whip-like motion. Pseudopodia are temporary cytoplasmic extensions used by some cells to crawl, not hairlike projections, and microvilli are small projections that increase surface area for absorption rather than movement. So the description matches cilia.

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