A flagellum moves a cell through a fluid medium.What moves the fluid medium across the surface of cells that are not free to move?
A) centrioles
B) thick filaments
C) cilia
D) ribosomes
E) endoplasmic reticulum

Question

Quizplus · Accepted Answer

Cilia are responsible for moving fluid across the surface of cells that are not free to move. They are similar to flagella in structure, but shorter and more numerous. Centrioles play a role in cell division, thick filaments are involved in muscle contraction, and ribosomes and endoplasmic reticulum are involved in protein synthesis and processing, respectively, none of which are directly involved in moving fluid across cell surfaces.

A Flagellum Moves a Cell Through a Fluid Medium