Advertisements
Advertisements
प्रश्न
A potted plant having straight parts A and B was placed horizontally on its side as shown in Figure (i). After a few days, it was observed that parts A and B of the plant acquired new positions as shown in Figure (ii).
- Name the phenomenon exhibited by the position of plant parts A and B in Figure (ii).
- Name the stimulus (other than sunlight) which causes plant part A to grow and bend upwards, and plant part B to bend downwards.
उत्तर
- The phenomenon exhibited by the positions of plant parts A and B is geotropism.
- The stimulus which causes plant part A to grow and bend upwards and part B to bend downwards is gravity.
APPEARS IN
संबंधित प्रश्न
What is a plant hormone? Name four plant hormones. State one function of each.
Name the plant organ which is positively geotropic
State whether true or false. If false, correct the statement.
The response of a part of plant to the chemical stimulus is called phototropism.
The growth of tendrils in pea plants is due to
What is a tropic movement? Explain with an example.
Heliotropism is a kind of ______.
Analogy:
Towards a stimulus: ______:: Away from the stimulus: Negative tropism.
Write the scientific terms used to represent the following:
Bending of roots towards the water.
The leaves of the 'chhui-mui' plant begin to fold up and droop in response to a stimulus. Name the stimulus and write the cause for such a rapid movement. Is there any growth involved in the movement?
Which parts of a plant exhibit Negative geotropism?
