Podcast
Questions and Answers
What is the difference between taxes and tropisms?
What is the difference between taxes and tropisms?
Taxes involve the whole organism's movement, whereas tropisms involve the movement of a specific part of the organism.
Give an example of a positive tax.
Give an example of a positive tax.
Single-celled algae moving towards light (positive phototaxis).
Explain kinesis and how it differs from taxes.
Explain kinesis and how it differs from taxes.
Kinesis is a random movement where the rate of activity is determined by the intensity of the stimulus rather than the direction. Unlike taxes, it is not directional.
What is the role of a receptor in the process of responding to a stimulus?
What is the role of a receptor in the process of responding to a stimulus?
Signup and view all the answers
Give an example of a negative tropism.
Give an example of a negative tropism.
Signup and view all the answers
How does light affect movement in an experiment?
How does light affect movement in an experiment?
Signup and view all the answers
Study Notes
- Stimulus is a change in the internal or external environment that leads to a response, followed by receptor detection, coordination of a response, and effector production.
- Taxes are directional movements in response to a stimulus, with positive taxes moving towards the stimulus and negative taxes moving away.
- Examples of taxes include single-celled algae moving towards light (positive phototaxis) and worms moving away from light (negative phototaxis).
- Kinesis is a random movement where the rate of activity is determined by the intensity of the stimulus rather than the direction.
- Differences between taxes and tropisms include taxes involving the whole organism's movement, while tropisms involve the movement of a specific part of the organism.
- Tropisms can be positive (growth towards a stimulus) or negative (movement away from a stimulus) like phototropism and gravitropism.
- In an experiment, behaviors exhibited by groups suggest factors controlling behavior, such as light affecting movement.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on stimulus, taxes (positive and negative phototaxis), kinesis, and tropisms (positive and negative like phototropism and gravitropism). Explore concepts such as receptor detection, coordination of responses, effector production, and factors affecting behaviors in organisms.
