How do bacteria move? They have a motor.
How do bacteria move? They have a motor.
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What Physical ‘Life Force’ Turns Biology’s Wheels? | Quanta Magazine
The bacterial flagellar motor is finally understood after 50 years. In its workings, columnist Natalie Wolchover finds the essence of life.

TLDR: If the motor turns one way, they move in a straight line. If it turns the other way, they tumble. How do they hunt? They have chemical sensors.
Science paper: https://journals.asm.org/doi/10.1128/mbio.03824-24