Final answer:
A taproot is an actual root that serves as a nutrient storage organ, distinguishing it from tubers, rhizomes, bulbs, or corms which are modified stems. It is equipped to anchor the plant securely and allows for deep soil penetration to absorb water and minerals.
Step-by-step explanation:
An enlarged fleshy underground root that stores nutrient reserves is known as a taproot. Unlike tubers, rhizomes, bulbs, or corms, which are modified stems used for storage, a taproot is an actual root. Taproots may grow very deeply into the soil and are typically found in dicotyledonous plants. A well-known example of a taproot is the carrot. Taproots serve several important functions including anchoring the plant securely, absorbing water and minerals, and acting as storage sites for nutrients to help the plant survive through various environmental conditions.