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5 Written questions

5 Matching questions

  1. active site
  2. proton
  3. protein
  4. element
  5. molecule
  1. a specific place where a substrate binds on an enzyme.
  2. b organic compound made of amino acids joined by peptide bonds; primary building block of organisms.
  3. c positively charged particle in an atom's nucleus.
  4. d pure substance composed of only one type of atom; cannot be broken down into another substance by physical or chemical means
  5. e compound whose atoms are held together by covalent bonds

5 Multiple choice questions

  1. substance that releases hydroxide ions (OH-) when dissolved in water; a basic solution has a pH greater than 7.
  2. particle without a charge in an atom's nucleus
  3. hydrophobic biological molecule composed mostly or carbon and hydrogen; fats, oils, and waxes are lipids
  4. atom that is negatively or positively charged because it have lost or gained one or more electrons.
  5. reactant to which an enzyme binds

5 True/False questions

  1. atomatom that is negatively or positively charged because it have lost or gained one or more electrons.

          

  2. solventsubstance dissolved in a solvent.

          

  3. acidsubstance that releases hydrogen ions (H+) when dissolved in water; an acidic solution has a pH less than 7.

          

  4. covalent bondelectrical attraction between two oppositely charged atoms or groups of atoms.

          

  5. enzymeprotein that speeds up a biological reaction by lowering the activation energy needed to start the reaction

          

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