study guide for physical science and biology final exam
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Atomic number | number of protons
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Atomic mass | number of protons and neutrons
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Octet rule | only 8 valence electrons
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Ionic Bond | a bond between a non-metal and a metal, transfer of electrons
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Covalent Bond | a bond between 2 non-metals, sharing of electrons
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pH | percent hydrogen
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Organic Chemistry | must contain carbon atoms
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Inorganic Chemistry | does not contain carbon atoms
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Hydroxyl | -OH, alcohol
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Carbonyl | =O, aldehydes and ketones
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Carboxyl | =O and -H, Carboxylic acids
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Amino | =O and -OH, Amines
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Sulfhydryl | -SH, thiols
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Phosphate | PO4-2, organic phosphates
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Proton | a positively charged subatomic particle
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Sublimation | the state changes from a solid to a gas
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Law of Conservation of Mass | mass is neither created nor destroyed in a chemical reaction
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Isotopes | same element but different number of neutrons
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Isomers | same chemical formula but different structure
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Saturated | has only single bonds
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Unsaturated | has at least 1 double or triple bond between the carbons
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hydrocarbons | organic molecules containing only H and C
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Polymer | large molecule consisting of many subunits
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Monomer | 1 subunit
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macromolecules | large organic polymer
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Condensation or Dehydration Synthesis | remove water to make polymers
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Hydrolysis | add water to break polymers
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exergonic | release energy
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endergonic | absorb energy
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Carbohydrates | molecules that store energy and are used as building materials, have 20-30 monosaccharides
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Monosaccharides | single sugar, may have 3-8 carbons
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disaccharides | double sugar
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polysaccharides | many sugars (8-1000)
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cellulose | major component of plant cell walls
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chitin | polymer of an amino sugar
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Proteins | large 3D macromolecules responsible for most cellular functions
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Enzymes | catalysis that speed up a chemical reaction
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Conformation | the 3D shape of a protein is determined by its amino acid sequence
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Denaturation | process which alters native conformation
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Nucleic Acids | store and transmit hereditary information for all living things, DNA and RNA
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Gene | a specific segment of a DNA molecule with information for a cell to make 1 polypeptide
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Lipids | fats, phospholipids, and steroids
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Activation Energy | minimum energy needed to start a chemical reaction
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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