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Biology 2

TermDefinitionPercent
Oxygen Required for cellular respiration; component of water. (65%)
Sodium Principal positive ion bathing cells; important in nerve function. (0.2%)
Potassium Principal positive ion bathing cells; important in nerve function. (0.4%)
Hydrogen Election carrier; component of water and most organic molecules. (9.5%)
Phosphorus Backbone of nucleic acids; important in energy transfer. (1.0%)
Magnesium Critical component of many energy transferring enzymes. (0.1%)
Carbon Backbone on organic molecules. (18.5%)
Sulfur Component of most proteins. (0.3%)
Chlorine Principal negative ion bathing cells. (0.2%)
Nitrogen Component of all proteins and nucleic acid. (3.3%)
Calcium Component of bones and teeth; triggers muscle contractions. (1.5%)
Created by: SimonaSomers14
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