12 terms

Chemical Elements in Biology

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ions of this metal are kept at high concentrations inside cells to maintain fluid balance
potassium
movement of ions of this metal into neurons is part of the process of transmitting nerve impulses
sodium
element which is the final electron acceptor in cellular respiration
oxygen
ions of this metal are part of many important biological molecules including chlorophyll
magnesium
ions of this metal are in the oxygen-transporting molecule hemoglobin
iron
ions of this metal are a major part of teeth and bones
calcium
nonmetal which is used to build amino acids and the bases in nucleic acids
nitrogen
large biological molecules are built on chains of this element
carbon
element found in nucleic acids and phospholipids
phosphorus
two essential amino acids contain this element
sulfur
negatively-charged ions of this element are found inside cells to balance positively-charged ions
chlorine
concentration gradients of ions of this element are generated by electron transport chains and used to synthesize ATP
hydrogen
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