MBIO 1010 Chapter Notes - Chapter 2: Meiosis, Eukaryote, Chlorophyll
6 Dec 2016
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Must be stained to view: flagella stain. Can be used for identification: a. polar flagellation: flagella attached to one or both ends of a cell, monotrichous- single flagellum from one end of the cell. Multiple flagella in tufts at opposite ends: lophotrichous- Multiple flagella in a single tufts on one end of the cell: b. peritrichous flagellum. 2. 49: can use this classification to distinguish bacteria. Flagella structure: filament rigid helical protein about 20 um long composed of identical protein subunits- flagellin approx. 20,000 flagellin subunits are used to make a single flagellum singluar: flagellum plural: flagella: hook flexible coupling between filament and basal body, basal body (motor) consists of central, rod that passes through series of rings: Still in the membrane but open to the cytoplasmic space. Energy to turn the flagella comes from the proton motive force (pmf: gradient of protons (h+) across the cytoplasmic membrane.
