Question

Epidermis and epiblema are produced from

• A. Phellogen
• B. Calyptrogen
• C. Procambium
• D. Protoderm

Answer 1

The correct option is D Protoderm

• The epidermis is a derivative of protoderm which forms the outermost layer of cells which forms covering on the stem, root, leaf of a plant.
• It consists of waxy cuticle layer that acts as a protective barrier against mechanical injury, prevent water loss etc.
• Epiblema is an outermost single layer of the root.
  
• They are the imperfect epidermis that replaces a true epidermis in submerged plants to protect the growing roots from the extremities of the environment.
• So, the correct answer is 'Protoderm'.