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Flagellum
and
Cilia
By Corey Carr and E.J. Kugler
STRUCTURE
Cilia and Flagella enable a cell to move
 A flagellum is on the end of every sperm
cell
 Without a flagellum sperm would not be
able to fertilize an egg

CILIA AND FLAGELLA FUNCTIONS
Cilia is just another word for a large
amount of flagella organized in dense
rows
 Cilia can be found in the trachea to move
dust and mucus particles out of the
respiratory tract and into the throat.
 Once the mucus and dust particles are in
the throat we expel them by spitting or
swallowing

CILIA
Flagellum are the tail structures that
project cells through out the body.
 Three types:

◦ Bacterial- spin to move
◦ Archaeal- similar to Bacterial, except they are
non-homologous
◦ Eukaryotic- move tail back and forth to move
FLAGELLA
CILIA vs. FLAGELLA
Flagellum propel a cell
Cilia move liquid to where it needs to be
If flagellum or cilia malfunction the
system breaks down
 If sperm don’t swim, the egg cannot be
fertilized
 If cilia fail to remove mucus and dust from
the lungs, we die

DISEASE/MALFUNCTION