Question

Bacteria move back and forth by using their flagella (structures that look like little tails). Speeds of up to 50 µm/s ( 50×10-6 m/s) observed. They are oblong with a typical size ~ 7µm (7 x 10m-6 ) x 2 µm (2 x 10-6 m). a: After a period of time, is the total distance traveled by a bacterium large or small compared to its size? Defend your answer. b: After a period of time is the displacement by the bacterium large or small compared to its size? Why? Defend your answer.

Answer 1