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a fully differentiated structural and functional unit in an animal that is specialized for some particular function
an electron in the outer shell of an atom which can combine with other atoms to form molecules
having slightly opposite charges, making the molecule "sticky" and attracted to other charged particles. (ex. water)
the property of sticking together (as of glue and wood) or the joining of surfaces of different composition
weak chemical bond formed by the attraction of positively charged hydrogen atoms to other negatively charged atoms
set of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes
A class of nutrients made of sugars; these nutrients include sugar and starch. Main source of energy in living things.
the form of sugar that circulates in the blood and provides the major source of energy for body tissues
electrons are shared equally, so there is no overall charge on the molecule, therefore it is not attracted to charged particles (ex. fats)
a value that indicated the acidity or alkalinity of a solution on a scale of 0-14, based on the proportion of H+ ions.
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