Round 10: Tossup 10

One part of these structures in Gram-negative bacteria is composed of the L, P, MS, and C rings. Fli proteins allow these structures to change directions, and Mot proteins move these structures with a proton gradient. A type of these structures can cause cells to “tumble.” That “peritrichous” type of these structures are attached in all directions. By definition, (*) Opthisokonts possess these structures. These structures are composed of a “hook,” “motor,” and “filament.” (10[2])They’re not cilia, (10[1])but these structures possess a 9+2 arrangement. For 10 points, name these tail-like structures that provide motility to some types of bacteria. ■END■

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