ABSTRACT
Cell wall is a unique feature in a plant cell. This extra-protoplasmic entity is a fundamental distinguishing feature that makes a mark on a plant cell from the corresponding unitary biological material of the animal kingdom. The somatic cells of plants are characterized by three peripheral layers and this come to the vision of the scientist long before the underlying material that is the protoplasm was discovered. This structural barrier of a plant cell, which is looked upon as a secretory product of protoplasm is however, destined with a number of important functions to perform. In addition to providing the skeletal support, cell walls are known to participate in a number of physiological functions and have an important role in the carbon economy of the biosphere (Goodwin and Mercer, 1988).
