PLANT RESPONSES Flashcards
What is a tropism?
A plant’s response to stimuli, producing hormones which can then affect plant growth.
What is a positive tropism?
A growth response towards a stimuli.
What is a negative tropism?
A growth response away from the stimuli.
What is geotropism?
Growth in response to gravity.
What is phototropism?
Growth in response to a light source.
What part of the plant undergoes positive phototropism?
stem tip
What part of the plant undergoes negative phototropism?
root
What part of the plant undergoes negative geotropism
stem tip
What part of the plant undergoes positive geotropism?
root
What is auxin?
A plant hormone responsible for controlling direction of growth of stem tips in response to light.
Where is auxin found?
tip of stem
How does auxin travel to the shaded side of the plant
via diffusion
