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important elements in living things
elements and functions and symbols
13
Chemistry
12th Grade
10/02/2009

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Cards

Term
oxygen
Definition
component of water and organic molecules, functions in cellular respiration
Term
carbon
Definition
found in all organic molecules
Term
hydrogen
Definition
component of water, all foods and most organic molecules. as an ion, it influences the pH of body fluids.
Term
nitrogen
Definition
component of proteins and nucleic acids
Term
calcium
Definition
structural component of bones and teeth, important in muscle contraction, conduction of nerve impulses and blood clotting
Term
phosphorus
Definition
component of nucleic acids, structural component of bones and teeth, important in nerve functioning and muscle contraction
Term
potassium
Definition
principal positive ion within cells, important in nerve functioning and muscle contraction
Term
sodium
Definition
principal positive ion within interstitial fluid, important in fluid balance, essential for conduction of nerve impulses and muscle contraction
Term
chlorine
Definition
principal negative ion within interstitial fluid, important in fluid balance
Term
sulfur
Definition
component of many proteins, especially in contractile proteins in muscle
Term
magnesium
Definition
present in bone, component of many enzymes
Term
iron
Definition
component of hemoglobin and some enzymes
Term
iodine
Definition
vital to the production of thyroid hormone
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