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Bio 2.1, 2.2, 2.3

TermDefinition
Atom Smallest basic unit of matter
Element Substance made of only one type of atom that cannot be broken down by chemical means
Compound Substance made of atoms of different elements that are bonded together in a particular ratio
Ion Atom that has gained or lost one or more electrons
Ionic Bond Chemical bond formed through the electrical force between oppositely charged ions
Covalent Bond Chemical bond formed when two atoms share one or more pairs of electrons
Molecule Two or more atoms held together by covalent bonds
Hydrogen Bond Attraction between a slightly positive hydrogen atom and slightly negative atom
Cohesion Attraction between molecules of the same substance
Adhesion Attraction between molecules of different substances
Solution Mixture that is consisted throughout
Solvent Substance in which solutes dissolve and that is present in greatest concentration in a solution
Solute Substance that dissolved in a solvent and is present at a lower concentration than the solvent
Acid Compound that donates a proton
Base Compound that accepts a proton
pH Measurement of acidity
Monomer Molecular subunit of a polymer
Polymer Large, carbon-based molecule formed by monomers
Carbohydrate Molecule composed of carbon, hydrogen, and oxygen; includes sugars and starches
Lipid Nonpolar molecule composed of carbon, hydrogen, and oxygen includes fats and oils
Fatty Acid Hydrocarbon chain often bonded to glycerol in a lipid
Protein Polymer composed of amino acids linked by peptide bonds
Amino Acid Molecule that makes up proteins composed of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur
Nucleic Acid Polymer of nucleotides; the genetic material of organisms
Created by: BodkinG26
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