Special Tissues


 
 
Concept Explanation
 

Special Tissues

Tissues that have completely lost the ability to divide are called as permanent tissues. Permanent tissues are of three types : Complex, Simple and Special permanent tissues.

Special Tissues:

Besides simple and complex tissues, plants also have special tissues whose function is secretion. These tissues secrete latex, gums, resins, oils, etc. Latex is a thick, sticky white fluid secreted by rubber, banyan, fig trees and garden plants like oleander (kaner in Hindi). Based on modifications these tissues can be divided into Two types :

  •  Laticiferous Tissue : This plant tissue have latex. They originated from meristematic tissue and mature with other tissues. The cells are elongated, thin walled and multinucleated.
  • Glandular TissueThey possess various glands, that secretes oils, resins, tannin, mucilage etc.
  • Citrus and rose plants secrete oils, while gums and resins are secreted by many coniferous trees.
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    Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    Thick, sticky white fluid secreted by rubber, banyan, fig trees and garden plants like oleander is called as _______________________.

    Right Option : A
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    Explanation
    Question : 2

    Which of the following tissue is specialized for secretory function ?

    Right Option : C
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    Explanation
    Question : 3

    Tissue that secrete latex and have elongated, thin walled and multinucleate cells is called as ____________________.

    Right Option : B
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    Explanation
     
     
     
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