Describe the Simple Permanent and Complex Permanent Tissue

Asked by Jayanthi | 10th Jul, 2017, 04:54: PM

Expert Answer:

Permanent tissues have cells which do not divide and are specialised to perform a specific function.
 
Simple Permanent Tissues:
  • There are three kinds - Protective tissue, Supportive Tissue
  • Dermal Tissue is the protective tissue. It forms the protective covering of the plant's body.
  • Supportive Tissues: The role of supportive tissue is to provide support and mechanical stregnth to the plant parts.
  • Parenchyma, collenchyma and scelrenchyma are the supportive tissues.
  • Parenchyma: It is present in the stem, leaves, flowers, fruits and seeds.
  • Collenchyma: It is found in non-woody plants, leaf stalks and veins of leaves.
  • Sclerenchyma: It is found in fruit peels, seed coats.
Complex Permanent Tissues:
  • Xylem and Phloem are the complex permanent tissues.
  • Different cells come together to form these tissues and perform the specific function.
  • Xylem: It is a water conducting tissue. It is formed of four elements - tracheids, vessels, fibre and xylem parenchyma.
  • Phloem: It is a food conducting tissue. It is formed of four elements - sieve tubes, companion cells, fibre and phloem parenchyma
 
 
 
 

Answered by Hemangi Binny | 10th Jul, 2017, 06:07: PM

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