BotanyConsider the following statements.(A) In some legume plants, leaf base remains swollen. (B) The swollen leaf base is called pulvinus whereas the swollen leaflet base is called pulvinnule.Select the correct option.                        

Consider the following statements.

(A) In some legume plants, leaf base remains swollen. 

(B) The swollen leaf base is called pulvinus whereas the swollen leaflet base is called pulvinnule.

Select the correct option.

                        

  1. A

    Both (A) and (B) are true.

  2. B

    (A) is true but (B) is false.

  3. C

    (A) is false but (B) is true.

  4. D

    Both (A) and (B) are false.

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    Solution:

    Leaf base is the lowermost part of the leaf by which the leaf is joined to the node of the stem.  In many legumes it is swollen. The swollen leaf base is known as pulvinus. It is responsible for sleep and shock movements of certain leaves, e.g., Mimosa pudica and Cassia. Pulvinnule is swollen leaflet base.

     

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