Advertisements
Advertisements
प्रश्न
Plant shoot grows upward in response to ______.
उत्तर
Plant shoot grows upward in response to light.
APPEARS IN
संबंधित प्रश्न
What does a tendril do in response to the touch of a support? What is this phenomenon known as?
Give one example of chemotropism. State whether this example is of positive chemotropism or negative chemotropism.
Give one example of the movement of a plant part which is caused by the loss of water (or migration of water).
How does phototropism occur in a plant stem (or shoot)? Explain with the help of labelled diagrams.
One of the following plant hormones is responsible for the phenomenon of phototropism in plants. This is :
(a) gibberellin
(b) eltroxin
(c) cytokinin
(d) auxin
Which of the following terms denotes the movement of the root of a plant towards moisture in the soil?
(a) thigmotropism
(b) chemotropism
(c) hydrotropism
(d) geotropism
The bending of the shoot of a plant in response to light is called :
(a) geotropism
(b) phototropism
(c) thigmotropism
(d) photonasty
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 one way in which the above two processes are similar.
The growth of pollen tubes towards ovules is due to
Name the stimulus which causes the following movement in plant:
phototropism
