Answer
409.8k+ views
Hint: The plants show movement in response to stimuli. These movements help the plant to adapt with the environment and adverse conditions. This movement is called the tropic movement. These movements are important for growth and development of plants.
Complete answer:
To answer this question, we must know about different types of tropic movement. The tropic movement is a response to sunlight, nutrients, water etc for facilitating proper growth and development.
a) According to the question given in fig. A- The root developed from the seeds is moving down towards the earth. This movement is referred to as Geotropism. Geotropism is the growth of the plant in response to the gravity. The growth of plant shoots against gravity is called negative geotropism.
In fig. B. the shoot moves towards the sunlight. This type of movement of shot towards the sunlight is called phototropism.
b) Mimosa is called touch me not plant. It shows seismonastic (thigmonastic) movement which is also called touch induced movement. This type of movement is not a growth movement unlike in fig. A and B. It is a rapid plant movement. The mimosa plant undergoes a change in the morphology of the leaves in response to touch.
Note: The other type of movement exhibited by plants is the tactic movement. It is a type of locomotion movement which is caused by unidirectional stimuli. This movement differs from nastic movement as the movement of plants is in the direction of the induced stimuli.
Complete answer:
To answer this question, we must know about different types of tropic movement. The tropic movement is a response to sunlight, nutrients, water etc for facilitating proper growth and development.
a) According to the question given in fig. A- The root developed from the seeds is moving down towards the earth. This movement is referred to as Geotropism. Geotropism is the growth of the plant in response to the gravity. The growth of plant shoots against gravity is called negative geotropism.
In fig. B. the shoot moves towards the sunlight. This type of movement of shot towards the sunlight is called phototropism.
b) Mimosa is called touch me not plant. It shows seismonastic (thigmonastic) movement which is also called touch induced movement. This type of movement is not a growth movement unlike in fig. A and B. It is a rapid plant movement. The mimosa plant undergoes a change in the morphology of the leaves in response to touch.
Note: The other type of movement exhibited by plants is the tactic movement. It is a type of locomotion movement which is caused by unidirectional stimuli. This movement differs from nastic movement as the movement of plants is in the direction of the induced stimuli.
Recently Updated Pages
Mark and label the given geoinformation on the outline class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
When people say No pun intended what does that mea class 8 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Name the states which share their boundary with Indias class 9 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give an account of the Northern Plains of India class 9 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Advantages and disadvantages of science
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Bimbisara was the founder of dynasty A Nanda B Haryanka class 6 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Differentiate between homogeneous and heterogeneous class 12 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
10 examples of evaporation in daily life with explanations
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
How do you graph the function fx 4x class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)