Question

Which of the following description of chemotaxis is correct for peritrichous forms A. Attractant starts counterclockwise rotation of flagellum = a run. B. Loss of stimulus reverses direction of flagellum bacterium tumbles. C. Attractant makes flagella sweep toward one end and rotate = a run D. Loss of stimulus and flagella loose coordination and bacterium tumbles. From the list below choose the cell surface structure(s) that allow bacteria to adhere to surfaces. A. Flagella. B. Fimbriae. C. Capsules. D. Lipopolysaccharides. E. Cilia.

Answer 1

First question

Answer is A...Attractants start the counterclockwise rotation of flagellum resulting in a run

Second question

Answer is Fimbriae