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Unit 2: Bio Vocab

Chemistry of Life

TermDefinition
Atom The basic unit of matter.
Nucleus The center of an atom which contains protons and neutrons.
Electron Negatively charged particle located outside the nucleus.
Ionic Bond Chemical bond formed when one or more electrons are transferred from one atom to another.
Covalent Bond Type of bond between atoms in which the electrons are shared.
Hydrogen Bond Weak attraction between a hydrogen atom and another atom.
Cohesion Attraction between molecules of the same substance.
Adhesion The force of attraction between different kinds of molecules.
Acid A compound that forms hydrogen ions in solution; a solution with a pH of less than 7.
Base A compound that produces hydroxide ions in solution; a solution with a pH of more than 7.
Monomer Small chemical unit that makes up a polymer.
Polymer Molecule made up of many monomers.
Carbohydrate Macromolecule made of carbon, hydrogen, and oxygen atoms; type of nutrients that are the major source of energy to the body.
Lipid Macromolecule made mostly from carbon and hydrogen atoms; includes fats, oils, and waxes.
Nucleic Acid Macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus; found in DNA and RNA.
Protein Macromolecule that contains carbon, hydrogen, oxygen, and nitrogen; needed by the body for growth and repair.
Chemical Reaction Process that changes one set of chemicals into another set of chemicals.
Reactant Elements or compounds that enter into a chemical reaction.
Product Elements or compounds produced by chemical reactions.
Enzyme Protein catalyst that speeds up the rate of specific biological reactions.
Created by: user-1874464
 

 



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