Advertisements
Advertisements
प्रश्न
Which of the following is a growth movement and which is not?
- Folding up of leaves of sensitive plant on touching with hand.
- Folding up of petals of dandelion flower when light fades.
उत्तर
Neither of them are growth movement. They are nastic movements.
- This is a thigmonastic movement.
- This is a photonastic movement.
APPEARS IN
संबंधित प्रश्न
What is the stimulus in chemotropism?
Plant parts show two types of movements, one dependent on growth and other independent of growth Give one example which depends on growth
What is a plant hormone? Name four plant hormones. State one function of each.
What does a root do in response to gravity? What is this phenomenon known as?
What does a stem (or shoot) do in response to gravity? What is this phenomenon known as?
Name the plant organ which is positively geotropic
When the leaves of a sensitive plant are touched with a finger, they fold up and when light fades at dusk, the petals of a dandelion flower close.
state two ways in which the above two processes differ.
Name a hormone which is responsible for phototropism
Name the phenomenon occurring in plants which are under the control of gravity, water and chemicals with one example each that shows the movement involved.
Growth of root towards water is ______.