Which nutrient is crucial for enzyme function and protein synthesis in plants and is represented by the letter Fe?

Iron is a vital nutrient for plants, primarily because it plays a fundamental role in enzyme function and protein synthesis. It serves as a critical component of various enzymes, particularly those involved in the process of photosynthesis and respiration. In plants, iron is essential for the production of chlorophyll, which is necessary for capturing light energy.

Additionally, iron facilitates the transfer of electrons in biochemical reactions, thereby influencing the synthesis of proteins and nucleic acids. This nutrient also supports the formation of various proteins that regulate plant growth and development, making it indispensable for overall plant vitality.

While other nutrients like copper, boron, and calcium are also important for plant health, they serve different roles. Copper is involved in photosynthesis and nitrogen metabolism, boron aids in cell division and structure, and calcium is crucial for cellular integrity and signaling. Hence, iron uniquely fulfills the requirements for enzyme function and protein synthesis, justifying its recognition as the nutrient represented by Fe.