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 primary root tissue is responsible for storing food, which is one of the products of photosynthesis. This layer is sometimes called the cortex. This layer is found after the epidermis and often makes up the bulk of the root. This is especially the case in some plants, such as carrots or radishes.uch like in the plant stem, the vascular cylinder in the root contains xylem and phloem. Xylem moves water and dissolved minerals within a plant, while phloem moves food throughout a plant. The xylem generally moves water up from the roots, while the phloem moves food from the leaves to the roots.