What layer protects the meristematic zone of a plant root?

The root cap is the layer that protects the meristematic zone of a plant root. Located at the tip of the root, the root cap serves several critical functions, one of which is to safeguard the delicate meristematic tissue that is actively undergoing cell division and growth. This protective layer buffers the meristem from physical damage as the root pushes through soil, which can be abrasive and compact. Furthermore, the root cap plays a role in sensing gravity, aiding in the appropriate growth direction of the root. By providing this essential protection and facilitating root development, the root cap is crucial to the overall health and growth of the plant.