Permanent tissues possess the following characteristics:

(i) Cells of this tissue can be living or dead.

(ii) Cell walls may be thin or thick.

(iii) Intercellular spaces may be present or absent.

(iv) Metabolic activities are relatively slow.

(v) Vacuoles in the cells are prominent.

Examples of permanent tissues are parenchyma, collenchyma and sclerenchyma (simple tissues) and xylem and phloem (complex tissues).