tropism

• Fenômeno biológico que designa a orientação ou o movimento de crescimento involuntário de um organismo, geralmente uma planta, em resposta a um estímulo externo, como luz ou gravidade.

A biological phenomenon referring to the involuntary orientation or growth movement of an organism, typically a plant, in response to an external stimulus such as light or gravity.

1. Involuntary orientation responseC1formalscientific

   An involuntary orienting response of an organism, involving positive or negative reaction to a stimulus source.

   Tropismo

   • The plant exhibited positive tropism by growing towards the sunlight.
   • Negative tropism causes roots to grow away from light.
   • Scientists studied the tropism of bacteria in response to chemical gradients.