Question

Fatty substance found in epidermal cell walls is

• A. Cutin
• B. Suberin
• C. Both A and B
• D. Wax

Answer 1

The correct option is A Cutin

• The cuticle is the waxy layer present on the epidermis of the leaf and it reduces the rate of water loss by transpiration in certain higher plants.
• It consists of cutin, a waxy, water-repellent substance allied to suberin, which is found in the cell walls of corky tissue.
  
• Cutin is especially noticeable in many fruits, e.g., apple, nectarine, and cherry, which can be buffed to a high gloss.
• Carnauba wax is derived from the cuticles of the leaves of Copernicia cerifera, a Brazilian palm.

Thus, the correct answer is option A.