Question

When cilia are bent toward the shortest cilium, what occurs?

A) Propulsion
B) Repulsion
C) No effect
D) Rotation

Answer 1

When cilia are bent toward the shortest cilium, propulsion occurs. Cilia use a rapid, waving motion to move and can help propel cells and particles along surfaces.

Step-by-step explanation:

When cilia are bent toward the shortest cilium, propulsion occurs. Cilia are short, hair-like structures that cover the surface of certain eukaryotic cells. They use a rapid, flexible, waving motion to move and can help propel cells or particles along surfaces.

Cilia in the respiratory tract, for example, beat in synchrony to sweep mucus and debris out of the lungs. Therefore, when cilia are bent towards the shortest cilium, they create a directional movement that results in propulsion.