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1.2A water, acids

1.2A cell Compounds - Water, acids, bases and buffers

TermDefinition
acids molecules that dissociate in water and release hydrogen ions H+. Acids have a pH less than 7
bases molecules that either release hydroxide ions (OH-) or take up hydrogen ions (H+); bases have a pH greater than 7
buffers A buffer is a compound or combination of compounds, often a weak acid or base and a related salt, that keeps the pH of a solution within its normal limits.
hemoglobin a hemoprotein composed of globin and heme that gives red blood cells their characteristic color; function primarily to transport oxygen from the lungs to the body tissues
hydrogen bonding is the electrostatic attraction between polar molecules that occurs when a hydrogen (H) atom bound to a highly electronegative atom such as nitrogen (N), oxygen (O) or fluorine (F) experiences attraction to some other nearby highly electronegative atom.
hydrophillic dissolvable in water
hydrophobic he hydrophobic effect is the observed tendency of nonpolar substances to aggregate in aqueous solution and exclude water molecules.
lubricant is a substance that reduces friction of two items in contact with each other.
pH a numeric scale of the level of acidity/alkalinity of a solution. Scale from 0-14
polarity
solvent
temperature regulator
Created by: gwynneth
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