Cilia:

1. Number per cell ranging from 300 to 14000, occurring all over the surface of cell.

2. Very small in size, 5-10µ long.

3. Cilia beat in a coordinated rhythm either simultaneously (synchronous) or one after the other (metachronic).

ADVERTISEMENTS:

4. Help in locomotion, feeding circulation, aeration, etc.

Flagella:

1. Number is very less, usually 1-4 per cell.

2. Much longer, about 150µ long.

ADVERTISEMENTS:

3. They beat independent of each other.

4. Help in locomotion only.