Check sibling questions

What is the role of epidermis in plants?

 

Answer:

Epidermis is the single layer of cells that form the outermost layer in plants

They are flat with outer and side walls are thicker than the inner wall

  • It is present all through the plant and protects the plant parts .

Since it has to protect, these cells do not have intercellular spaces .

  • The epidermal cells on the aerial surface (part facing outward) secrete a waxy, water-resistant layer .

This aids :

    • Protection against loss of water
    • Mechanical injury 
    • Invasion by parasitic fungi
  • The epidermis is thicker in dry areas to protect plants from water loss. They also have a layer of chemical substance called cutin which gives the plant waterproof quality .
  • Small pores called stomata aid in Exchange of gases and Transpiration.

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CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Economics, Accounting and English at Teachoo