No student devices needed. Know more
10 questions
A tropism is...
a change in the environment
plant movement in response to a stimulus
something that causes a response
when photosynthesis takes place
What is the stimulus in this example?
Internal
Light
Touch
Temperature
Roots of a tree growing towards the water line of a house.
Geotropism
Phototropism
Thigmotropism
Hydrotropism
The shoot of a plant growing up.
Positive geotropism
Negative geotropism
Thigmotropism
Hydrotropism
The root of a plant growing down.
Positive geotropism
Negative geotropism
Thigmotropism
Hydrotropism
A plant growing in response to a greenhouse light.
Geotropism
Phototropism
Thigmotropism
Hydrotropism
Venus Flytrap flower reacts to a bug.
Thermotropism
Negative Geotropism
Thigmotropism
Hydrotropism
Rhododendron leaves close in cold weather.
Heliotropism
Thigmotropism
Phototropism
Thermotropism
Sunflowers turning towards the sun.
Hydrotropism
Phototropism
Thigmotropism
Geotropism
What makes a tropism positive or negative?
Positive = movement towards stimulus, Negative = movement away from stimulus
Negative = movement towards stimulus, Positive = movement away from stimulus
Who cares? It doesn't matter whether it is positive or negative
Positive = when a plant is happy, Negative = when a plant is sad
Explore all questions with a free account