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  •  When the primary root is replaced by a large number of roots, it is called Option: 1 Fibrous root <div class='qna-optio

 When the primary root is replaced by a large number of roots, it is called 

Option: 1

Fibrous root 


Option: 2

 Adventitious Root 


Option: 3

 Both a and b 


Option: 4

 None of these 


Answers (1)

best_answer

 

 

The Root System and Its Types

  • The roots arise from the direct elongation of the radicle in the majority of the angiosperms.
  • Roots are positively geotropic, positively hydrotropic and negatively phototropic.
  • It is non-green and is not differentiated into nodes and internodes.
  • The direct elongation of the radicle produces primary root which grows inside the soil.
  • This primary root then bears lateral roots called secondary roots, tertiary roots etc. 

  Fibrous Root System: In monocot plants, the primary root is short-lived and is soon replaced by a large number of roots that originate from the base of the stem. These are called fibrous roots.

 In monocot plants, the primary root is short-lived and is soon replaced by a large number of roots that originate from the base of the stem. These are called fibrous roots. 

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Kuldeep Maurya

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