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Unformatted text preview: through water. 4mm to 6 mm per minute in E.coli. Flagella can rotate at 2500 rpm. All spirilla have flagella (axial filaments or endoflagella) about 1/2 of the bacilli and a few cocci. DEFINITIONS: 4. Polar, lophotrichous, amphitrichous, peritrichous. 5. Runs and tumbles. Taxis, chemo, photo, thermo, magneto. When a stimulus is present tumbles are inhibited and the flagella turns counterclockwise constantly toward the stimulus. This is positive taxis. When a substance initiates tumbles the cell's flagella go clockwise and the cell tumbles, resuming its run in another direction. c. cell walls (exceptions--Mycobacterium, mycoplasma, archaebacteria, L-forms, spheroplasts, protoplasts. 1. Surrounding, encasing molecule is peptidoglycan. Visual. NAM-NAG-NAM-NAG-NAM-NAG-NAM-NAG This is the Glycan portion of peptidoglycan. Held together by beta linkages. Each Glycan strand held together by chain of amino acids to another strand. "Chain Link Fence" analogous....
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This note was uploaded on 01/23/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.
- Fall '09