One type of it is stem cells. Queiscent cells are adult cells which do not divide, but under certain stimulation when it is needed, it can undergo cell division. One example are hepatocytes (liver cells).Permanent cells are cells that do not divide at all and have no such capabilities.ne type of it is stem cells. Queiscent cells are adult cells which do not divide, but under certain stimulation when it is needed, it can undergo cell division. One example are hepatocytes (liver cells).
Hairs trap a still layer of air to slow the rate of water vapor loss. Epidermal tissue has stomatal guard cells that regulate transpiration. Vascular tissue has a role in internal transport of water from root to leaf. The xylem is lignified to control water dispersal from the column. Limiting water exit to the plasmodesmata (desmodesmata) channels through cell walls.
The Cuticle and the Stomata. The cuticle is a waxy, water-repellent layer that covers all of the above-ground areas of a plant. It is secreted by the epidermis, the outer layer of the plant, and covers up any holes or chinks between the cells. This waxy layer keeps all of the plant's valuable water inside where it belongs. However, while the cuticle closes up any areas where the plant could lose water, it also closes up any place that allows the plant to breathe. Remember, plants are the reverse of us; they take in carbon dioxide and release oxygen. Plants rectified this problem through the creation of pores in the leaf called stomata.