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प्रश्न
To which directional stimuli do roots respond?
उत्तर
The roots of a plant respond to gravity.
APPEARS IN
संबंधित प्रश्न
Give the scientific terms used to represent the Winding of tendril around a support.
What does a stem (or shoot) do in response to light? What is this phenomenon known as?
What happens to the dandelion flower
- during the daytime, and
- at night?
What is this phenomenon known as?
How are tropic movements helpful to plants? Explain with an example.
The movement of a shoot towards light is:
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 response of plants to gravity is known as geotropism. How are plant parts sensitive to gravity? Describe with the help of a diagram.
Higher Order Thinking Skill.
There are 3 plants A, B and C. The flowers of A open their petals in bright light during the day but closes when it gets dark at night. On the other hand, the flowers of plant B open their petals at night but closes during the day when there is bright light. The leaves of plant C fold up and droop when touched with fingers or any other solid object.
- Name the phenomenon shown by the flowers of plant A and B.
- Name one plant each which behaves like the flowers of plant A and B.
- Name the phenomenon exhibited by the leaves of plant C.
- Name the plant which behaves like the leaves of plant 'C'?
List two differences between the movement of leaves of a sensitive plant and the movement of a shoot towards light.
Name the stimulus which causes the following movement in plant:
Thigmotropism
