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A plant has weak stem which can coil aro...

A plant has weak stem which can coil around an upright support . It is a

A

Liana

B

Twiner

C

Climber

D

Creeper

Text Solution

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The correct Answer is:
B
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P and Q are two types of plants having weak stems which cannot stand upright on their own. The plants P and Q have organs R and S respectively which can grow towards and support which they happen to touch and wind around that support. It is observed that organ R originated from the leaves of the plant whereas organ S originates directly from the stem of the plant. (a) What is (i) R, and (ii) S? (b) What is the name of growth movement exhibited by the organs R and S? (c) Name the stimulus involved in this case. (d) State whether the behaviour of organs R and S is a tropic movement or a nastic movement. (e) Name one plant like P and another plant like Q.

A gas which is combustible and can support combustion is

Knowledge Check

  • A weak stem which itself coils around the support is called

    A
    Twiner
    B
    Scrambler
    C
    Liana
    D
    None of the above

  • A sensitive thread-like structure which can coil around a support is

    A
    Spring
    B
    Tendril
    C
    Rachis
    D
    Twiner.

  • The sensitive thread-like structures found in climbers which can coil around a support are

    A
    Twiners
    B
    Tendrils
    C
    Trailers
    D
    Scarmblers

    • Similar Questions

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    What do we call plants with weak stems that can't stand upright and spread on the ground?

    A gas which is combustible and can support combustion is.

    [A]: In certain plants the stem that twins around the support is hard and woody, such plants are called psammophytes. [R]: The hygroscopic roots have a spongy tis- sue called exodermis

    Which nematoblasts coil around the prey?

    The plants that does not have stem or weak stem and grow on support over other plants are known as

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