Taxes And Kineses Flashcards
What is the simplest forms of response to stimuli
Taxes and kineses
What does taxes and kineses rely on
Simple reflex actions
What does taxes and kineses involve
The locomotion of whole organisms or cells in response to a specific external stimuli helping maintain organisms in the most favourable environment for their survival
What is taxis
Directional response to directional stimuli
2 types of taxis
Positive taxis and negative taxis
Positive taxis
Organism or cell move towards stimulus
Negative taxis
Organism or cell move away from stimulus
Example of taxis
- phototaxis: light, they can move towards light
What is a kinesis
Non directional response to stimuli
What is a non directional response
Rate of movement is related to the intensity of stimulus not the direction
2 types of kinesis
Orthokinesis and klinokinesis
Orthokinesis
The rate of movement changes in response to intensity of stimulus
klinokinesis
The rate of turning changes in response to intensity of stimulus
