Plants, like us human beings and other animals, do get infected by pathogens. Naturally, they also have their own set of defense mechanisms to protect themselves from these deadly pathogens. The table depicts the component and how it defends the plant.
Column IColumn II(1) Bark(C) A dead cell that protects inner cells from the germs(2) Cuticles(D) The external layer of the epidermis of leaves(3) Cell wall(A) A resistant coat that provides rigidity to plant cells(4) Callose(B) A polysaccharide that prevents the entry of germs