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Carbonic anhydrase, an enzyme that requires zinc (gray sphere near the center of this image), is essential for exhalation of carbon dioxide.. In the context of nutrition, a mineral is a chemical element.
Rachel Levine Official portrait, 2021 17th Assistant Secretary for Health In office March 26, 2021 – January 20, 2025 President Joe Biden Secretary Xavier Becerra Preceded by Brett Giroir Secretary of the Pennsylvania Department of Health In office July 2017 – January 23, 2021 Governor Tom Wolf Preceded by Karen Murphy Succeeded by Alison Beam (acting) Personal details Born (1957-10-28 ...