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5 Written Questions

5 Matching Questions

  1. molecule
  2. protein
  3. product
  4. reactant
  5. isotope
  1. a organic compound made of amino acids joined by peptide bonds; primary building block of organisms.
  2. b two or more atoms of the same element having different numbers of neutrons.
  3. c compound whose atoms are held together by covalent bonds
  4. d substance that exists before a chemical reaction starts; located on the left side of the arrow in a chemical reaction.
  5. e substance formed by a chemical reaction; located on the right side of the arrow in a chemical equation.

5 Multiple Choice Questions

  1. carbon compound joined by peptide bonds; building block of proteins.
  2. a subunit of nucleic acid formed from a single sugar, a phosphate group, and a nitrogenous base.
  3. substance dissolved in a solvent.
  4. reactant to which an enzyme binds
  5. protein that speeds up a biological reaction by lowering the activation energy needed to start the reaction

5 True/False Questions

  1. active sitecarbon compound joined by peptide bonds; building block of proteins.

          

  2. solventpure substance composed of only one type of atom; cannot be broken down into another substance by physical or chemical means

          

  3. neutronparticle without a charge in an atom's nucleus

          

  4. mixturecombination of two or more different substances in which each substance keeps its individual characteristics; can have a uniform composition (homogeneous) or have distinct areas of substances (heterogeneous).

          

  5. electronnegatively charged particle that occupies space around an atom's nucleus.

          

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