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5 Written questions

5 Matching questions

  1. active site
  2. nucleus
  3. neutron
  4. chemical reaction
  5. electron
  1. a specific place where a substrate binds on an enzyme.
  2. b particle without a charge in an atom's nucleus
  3. c center of an atom; contains neutrons and protons. In eukaryotic cells, the central membrane-bound organelle that manages cellular functions and contains DNA
  4. d negatively charged particle that occupies space around an atom's nucleus.
  5. e energy-requiring process by which atoms or groups of atoms in substances are changed into different substances

5 Multiple choice questions

  1. complex macromolecule that stores and communicates genetic information.
  2. a subunit of nucleic acid formed from a single sugar, a phosphate group, and a nitrogenous base.
  3. reactant to which an enzyme binds
  4. two or more atoms of the same element having different numbers of neutrons.
  5. atom that is negatively or positively charged because it have lost or gained one or more electrons.

5 True/False questions

  1. proteinpositively charged particle in an atom's nucleus.


  2. solventsubstance in which another substance is dissolved.


  3. solutesubstance dissolved in a solvent.


  4. protonorganic compound made of amino acids joined by peptide bonds; primary building block of organisms.


  5. acidhydrophobic biological molecule composed mostly or carbon and hydrogen; fats, oils, and waxes are lipids