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Flagella and Cilia is considered one of the most asked concept.
11 Questions around this concept.
The motile bacteria are able to move by:
Flagella and Cilia
Cilia and flagella help in movement of the cell.
Flagella:
Cilia:
Structure of Flagella and Cilia:
Difference between Cilia and Flagella
Feature |
Cilia |
Flagella |
Appearance |
tiny hair-like structures protruding from the cell body |
whip-like extensions that grow outwards from the cell body |
Length |
significantly shorter; usually 5-6 um long |
can extend up to 10 times the cell length. Their length can go up to 1000 um |
Thickness |
though short, tend to have greater diameter; around 0.3 to 0.5 um thick |
around 20-25 nm (0.02 to 0.025 um) thin |
Density |
present in large numbers on the surface of the cell |
less in number |
Cell type |
fungi (yeast), macrophages (white blood cells), protozoa, and sperm cells, epithelial cells located in the respiratory tract also have cilia |
prokaryotic cells |
Motion |
produce forward and backward vibrations; movements are similar to a paddle stroke |
produce a whipping action, which means they have a rotatory behaviour |
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