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ANAT & PHYS I: bacte
BACTERIAL STRUCTURE, STAINING, AND CULTURE
Question | Answer |
---|---|
bacillus(s); bacilli(p) | Rods |
coccus(s), cocci(p) | Spheres |
vibrios (curved rods) | Spirals |
single flagellum | Monotrichous |
2 or more at one pole | Lophotrichous |
groups of flagella at both ends | Amphitrichous |
covered with flagella | Peritrichous |
Short appendages used for transfer of genetic material or anchoring to surfaces | pili |
composed of a polysaccharide and protein layer. They are secreted by thecell and adhere to the surface of the bacteria | CAPSULES |
The Gram staining procedure is an example of a | differential stain |
is often the starting point for identification of an unknown bacteria | Gram stain |
will retain the purple color of the primary stain (Crystal Violet) | Gram-positive |
organism that will take up the red color of the counterstain (Safranin Red). | Gram-negative |