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प्रश्न
What does a Mimosa pudica plant do in response to touch? What is this phenomenon known as?
उत्तर
Mimosa pudica folds its leaves and droops almost immediately in response to touch. This phenomenon is known as thigmonasty.
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संबंधित प्रश्न
Name the two types of tendrils.
What are the different types of tropisms? Define each type of tropism. Write the name of stimulus in each case
Name five stimuli which act on plants. Name the type of tropism produced by each one of these stimuli.
Define thigmotropism. Give one example of thigmotropism.
Which of the following is not caused by a growth movement?
The growth of a pollen tube towards the ovule caused by a sugary substance as stimulus is an example of :
(a) phototropism
(b) chlorotropism
(c) gravitropism
(d) chemotropism
Assertion: Plants do have a nervous system for control and coordination.
Reason: Plants use electrochemical means to convey information from cell to cell.
Name the following:
The tropic movement of plant parts in response to chemicals.
Name the stimulus which causes the following movement in plant:
phototropism
Study the diagrams given below and answer the following questions:
- Name the structures shown as X and Y in the figures (A) and (B), respectively.
- Write the functions performed by the structures X and Y.
- Name the phenomenon depicted and define it.
- How do the structures X and Y differ from each other?
- Give examples of the plants which show the said phenomenon.
