3-12 Flagella Stain
To see Flagella, what is the max wavelength of the electromagnetic spectrum that has to be used to create the image?
D = Wavelength / NA Objective + NA Condenser
What general conclusions can you draw about cell morphology and possession of flagella
Flagella occur in both gram positive and negative bacteria
Why cant flagella be observed in action?
In order to see flagella under a microscope, they must be stained. The staining process kills that cells.
Flagella motion can be
clockwise and counterclockwise
Amphitrichous
flagella at both poles of the cell
Peritrichous
flagella distributed over the entire cell
Cells swim because of
morphology
A single flagellum is said to be
polar and the cell has a monotrichous arrangement
Bacterial flagella are
too thin to be observed with light microscope and ordinary stains
Lophotrichous
tufts of flagella at the end of the cell