The biased random walk of bacteria is the result of swimming with A) less tumbling when Ca²⁺ levels are low. B) more tumbling when moving toward a chemorepellant. C) more tumbling when moving toward a chemoatractant. D) more tumbling when ATP binds the flagellar motor. E) None of the answers is correct.

Question

Quizplus · Accepted Answer

Bacteria exhibit a biased random walk by increasing their tumbling frequency when moving toward a chemorepellant, which helps them change direction and move away from harmful substances.

The Biased Random Walk of Bacteria Is the Result of Swimming