So far we know life uses H with C, N, O, P, S with Na, K, Mg, and Ca plus the transition metal ions Mn, Fe, Co, Ni, Cu, Zn, and Mo with Se and B plus halides Cl and I. These elements fall in clusters on the Periodic Table suggesting they are a relatively comprehensive list.
Is this list likely complete and if not what does the fundamental chemistry of the elements suggest as possible additions?
How far we go in considering necessary elements? Small amounts on Li, Cr, Si, and V are also considered important in cell signaling, enzyme function, regulation of apoptosis etc. Does your question pertain to only human life or also reptilian, plant, bacteria, yest, fungi. Yeast for example contain varying amounts of Mo, Ti, Ni among other minor elementals. Do we consider elements necessary for staying alive or for optimanl condition of health?
How far we go in considering necessary elements? Small amounts on Li, Cr, Si, and V are also considered important in cell signaling, enzyme function, regulation of apoptosis etc. Does your question pertain to only human life or also reptilian, plant, bacteria, yest, fungi. Yeast for example contain varying amounts of Mo, Ti, Ni among other minor elementals. Do we consider elements necessary for staying alive or for optimanl condition of health?
Several good points - I think anything life can use is relevant to understanding what can sustain life and therefore the elements we need to consider for life.
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