Which is NOT a component of the root tip structure?

The root tip structure consists of several key components that are essential for root development and function. The root cap is a protective structure that covers the tip of the root and helps it navigate through the soil as it grows. The region of maturation is where the root cells differentiate and take on specific roles, allowing the root to absorb water and nutrients effectively. The apical meristem is a region of actively dividing cells that contributes to the growth of the root.

Among the given options, a node is not part of the root tip structure. Nodes are found on stems and are the points where leaves or branches are attached. They play a different role in the plant's structure and growth compared to the components of the root tip, which focus specifically on protection, growth, and nutrient absorption at the root end. Understanding the distinct functions and structures of plant parts is crucial in plant science.