Question

The coordinated beating of cilia is

• A. Undulatory
• B. Metachronous
• C. Metachronous or isochronous
• D. Both A and B.

Answer 1

Answer: (C)

Metachronous or isochronous

C. Metachronous or isochronous

Reason: Cilia is a short microscopic hairlike vibrating structure found in plenty amount on the surface of certain cells, either causing currents in the surrounding fluid or, in some protozoans and other small organisms, providing propulsion. It also plays an important role in adherence. The movement of cilia is a type of rowing or sweep in motion where they beat simultaneously (synchronous or isochronous) or one after the other (metachronous). So the correct option is C.