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The sensitive plant folds up its leafle...

The sensitive plant _______ folds up its leaflets on being touched.

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Suppose the eyes of an alien being are sensitive to microwaves. Do you except the alien being to have larger or smaller eyes than ours?

How is the movement of leaves of the sensitive plant different from the movement of a shoot towards light?

Knowledge Check

  • Identify the correct pair of plants with odd number of leaflets in compound leaf

    A
    Hardwickia, Gynandropsis
    B
    Citrus, Aegle marmelos
    C
    Marsilea, Gynandropsis
    D
    Aegle marmelos, Hardwickia

  • Which of the following are not tropisms? (i) growing of pollen tube in response to a sugary substance (ii) folding up of leaves of sensitive plant in response to touch (iii) winding of tendril around a support in response to touch (iv) opening up of the leaves of a daisy flower in response to light?

    A
    (i) and (ii)
    B
    (ii) and (iii)
    C
    (i) and (iv)
    D
    (ii) and (iv)

  • The leaves of Mimosa pudica (sensitive plant) droop down on touch because

    A
    The plant has nervous system
    B
    The leaves are very tender
    C
    The leaves are injured
    D
    The turgor pressure of the leaf base changes

    • Similar Questions

    Explore conceptually related problems

    Which of the following is a growth movement and which is not? (a) folding up of leaves of sensitive plant on touching with hand. (b) folding up of petals of dandelion flower when light fades.

    When the leaves of a sensitive plant are touched with a finger, they fold up and when light fades at dusk, the petaks of a dandelion flower close. (a) State one way in which the above two processes are similar. (b) State two ways in which the above two processes differ.

    Why is the folding up of the leaves of a sensitive plant on touching with a finger not a tropism?

    What is the difference between the movement in a sensitive plant and the movement in our legs ?

    (a) Plants do not have any nervous system but yet, if we touch a sensitive plant, some observable changes take place in its leaves. Explain how could this plant respond to the external stimuli and how it is communicated. (b) Name the hormone that needs to be administered to (i) increase the height of a dwarf plant. (ii) cause rapid cell division in fruits and seeds.

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