Multiple choice

In the primary structure of Dicot root, the outer most layer of tubular living cells is known as

  1. exodermis

  2. hypodermis

  3. epidermis

  4. rhizodermis

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The rhizodermis is the specialized term for the outermost layer of cells in plant roots, analogous to the epidermis in stems. It is a tubular layer of living cells that protects the root and may develop root hairs for absorption.