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5 Written questions

5 Matching questions

  1. amino acid
  2. ion
  3. protein
  4. catalyst
  5. covalent bond
  1. a substance that speeds up a chemical reaction by reducing the activation energy.
  2. b type of chemical bond formed when atoms share electrons.
  3. c organic compound made of amino acids joined by peptide bonds; primary building block of organisms.
  4. d atom that is negatively or positively charged because it have lost or gained one or more electrons.
  5. e carbon compound joined by peptide bonds; building block of proteins.

5 Multiple choice questions

  1. organic compound containing carbon, hydrogen, and oxygen in a ratio of on oxygen and two hydrogen atoms for each carbon atom.
  2. large molecule formed by joining smaller organic molecules together
  3. mixture that can react with an acid or a base to maintain the pH within a specific range.
  4. electrical attraction between two oppositely charged atoms or groups of atoms.
  5. reactant to which an enzyme binds

5 True/False questions

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

          

  2. nucleotidea subunit of nucleic acid formed from a single sugar, a phosphate group, and a nitrogenous base.

          

  3. polymerprotein that speeds up a biological reaction by lowering the activation energy needed to start the reaction

          

  4. active sitea subunit of nucleic acid formed from a single sugar, a phosphate group, and a nitrogenous base.

          

  5. baseatom that is negatively or positively charged because it have lost or gained one or more electrons.

          

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