During chemotaxis bacterial cells move by flagellar motion in response to chemical signals.
Chemotaxis involves the cellular reactions of motility and directional sensing, which enable cells to sense and move along extracellular chemical gradients.A bacterial cell is in a solution with a chemical gradient. The bacterial cell directs its movements in order to move toward the highest concentration of glucose molecules within the solution. This is an example of positive chemotaxis.
Chemotaxis is the movement of an organism in response to a chemical stimuli in it's environment.this response is vital for animals to flee from harm and to locate useful resources. bacteria for example and other single-cell or multicellular organisms direct their movements according to certain chemicals in their environment such as glucose by swimming toward the it highest concentration of glucose which is food for it. In this case it is positive chemotaxis because the bacteria moves towards the chemical stimuli .
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