What are at least 3 other elements that are used for life functions and what are their uses?

Three essential elements for life functions include carbon, nitrogen, and phosphorus. Carbon forms the backbone of organic molecules, serving as the primary building block for proteins, lipids, carbohydrates, and nucleic acids. Nitrogen is crucial for the synthesis of amino acids and nucleotides, which are vital for proteins and DNA/RNA, respectively. Phosphorus plays a key role in energy transfer through ATP, as well as in the structural framework of DNA and cell membranes.