What is a "root"?

A root is a fundamental part of a plant's structure that typically grows underground, anchoring the plant in the soil and absorbing water and nutrients from the surrounding environment. Roots come in various shapes and sizes, ranging from slender and fibrous to thick and tuberous, depending on the plant species and its habitat. They consist of several key parts, including the root cap, which protects the delicate growing tip, and the root hairs, which increase the surface area for nutrient absorption. Roots also store reserves of energy and nutrients for the plant to use during periods of growth or stress. In addition to anchoring the plant and absorbing water and nutrients, roots play a crucial role in stabilizing soil, preventing erosion, and interacting with soil microorganisms.