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Biology

Biology vocab quiz

TermDefinition
polarity unequal sharing of electrons
hydrogen bond the attraction between a hydrogen atom on one molecule and the atom on another
covalent bond the sharing of electron pairs between atoms
iconic bond when one atom gives up one or more electrons to another atom
cohesion a bond between molecules of the same substance
surface tension the attractive force exerted upon the surface molecules of a liquid by the molecules beneath
adhesion a bond between molecules of different substances
capillary action the movement of liquid along a surface of a solid caused by the attraction of molecules of the liquid to the molecules of the solid
heat capacity the amount of heat energy required to increase its temperature
solvent the substance in which the solute dissolves
ion a charged particle
diffusion the processes by which particles move from an area of high concentration to an area of lower concentration
equilibrium a state of physical balance
facilitated diffusion when molecules that cannot directly diffuse across the membrane pass through special protein channels
osmosis the movement of water through cell membranes by facilitated diffusion
carbohydrates compounds made up of carbon, hydrogen, and oxygen atoms, usually in a ratio of 1 : 2 : 1
lipids made mostly from carbon and hydrogen atoms and are generally not soluble in water
nucleic acids macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus
proteins macromolecules that contain nitrogen as well as carbon, hydrogen, and oxygen
amino acids compounds with an amino group (-NH2) on one end and a carboxyl group (-COOH) on the other end
Created by: VickieJ10
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