Bacteria Chemotaxis Explained with Animated GIFs. Bacterial Behavior in Motion

bacteria, chemotaxis, random bias
With no attractant or repellant, bacteria have a “random bias”. This means they switch direction randomly.
bacteria, chemotaxis, attractant response
When bacteria are in an attractant gradient (colored orange), they switch direction less often when attractant concentration is higher.
bacteria, chemotaxis, repellant response
However, when a repellant is present (colored red), bacteria switch direction more often in high repellant concentrations.

 

 

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