1. Movement or locomotion of an organism in response to light stimulus.
Usage: biology; technical

Examples

• The photokinesis of certain bacteria allows them to move toward light sources.
• Scientists study photokinesis to understand how microorganisms navigate their environment.
• Algae exhibit photokinesis by swimming toward areas of optimal light intensity.
• The photokinesis response in insects helps them locate food and mates.
• Researchers observed photokinesis in the flagellated protist as it moved through the light gradient.