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Question
Which of the following is not caused by a growth movement?
Options
Bending of the shoot of a plant in response to light.
Closing up of leaves of a sensitive plant on touching with an object.
Climbing up of a plant on an object by using tendrils.
Movement of the root of a plant towards a source of water.
Solution
Closing up of leaves of a sensitive plant on touching with an object.
Explanation:
This is a non-directional movement of a plant in response to touch.
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RELATED QUESTIONS
What does a root do in response to gravity? What is this phenomenon known as?
What does a plant root do in response to water? What is this phenomenon known as?
Name the two types of tendrils.
Plant shoot grows upward in response to ______.
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
The bending of the shoot of a plant in response to light is called :
(a) geotropism
(b) phototropism
(c) thigmotropism
(d) photonasty
Answer the following question.
What is tropism?
State whether true or false. If false, correct the statement.
The response of a part of plant to the chemical stimulus is called phototropism.
Assertion (A): If the plant part moves in the direction of gravity, it is called positive geotropism.
Reason (R): Stem shows positive geotropism.
Ali has some pea plants in his garden which need a support to grow as seen in the picture given below:
- Name the phenomenon depicted by the shoot in the given figure.
- Define the above phenomenon.
- Write the name of the part marked X.
