Flagella and Cilia
John Kim
Jonathan Timothy Adi
What are Flagella and Cilia?
Flagella and Cilia are the locomotion
appendages of unicellular Eukaryotes.
Basically they are the limbs of cells!
They can act like legs, moving from
place to place.
Flagella
Cilia
They can also act like hands,
when they are part of an
immotile tissue.
How to differentiate
between Cilia and Flagella?
Cilia are large in numbers per cell
Flagella are few in numbers per cell
No Banana? :(
Only 2 of us?
Cilia move like an oar, there are
power and recovery strokes
Flagella move continuously like a
fish tail
Immotile Cilium can also act as an
Antenna. These Cilia are crucial to
brain function and embryonic
development.
Structure of Cilia and Flagella
Cilium
Basal
body
They are made
up of 2 different
parts. The motile
Cilium, upper
part; and the
basal body, the
lower half.
Structure of Cilia and Flagella
The cross section
shows
microtubules
arranged in “9+2”
in the upper half
and “9+0” in
basal body.
This comprises one of the “9” outer triplets in a
basal body
This makes up the “0”. Thus forming “9+0”.
Structure of Cilia and Flagella
In between these outer
doublets exists Dynein
proteins.
They allow movements by
changing the shape of the
protein using ATP.
*Phew* glad that’s over with…
Thanks, that is all.
References
www.cool-backgrounds.org (Background)
biology.unm.edu (Giardia, [Flagella])
news.discovery.com (Sperm, [Flagella])
currentsinbiology.tumblr.com (Cilia1)
academic.brooklyn.cuny.edu (Cilia2)
www.bio.davidson.edu (Cilia in Trachea)
www.philipvickersfithian.com (Body Surfing)
www.livescience.com (Hands Up)
www.photoree.com (Rocker)
villains.wikia.com (Minions from Despicable Me)
www.designbolts.com (2 Minions from Despicable Me)
www.bassvisuals.com (Jelly Fish)
www.cutestpaw.com (Cute Fish)
www.quickmeme.com (Sheep with Alpacas)
www5.pbrc.hawaii.edu (Longitudinal Section of Cilium)
scienceblogs.com (Textbook Pic)
commons.wikimedia.org (Cross Section of Cilia)
georgewbush-whitehouse.archives.gov (President Bush Thumbs up)
www.telegraph.co.uk (President Bush Puffing)