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5 Written questions

5 Matching questions

  1. Organic molecule
  2. Unsaturated fat
  3. Catalyst
  4. Saturated fat
  5. Hydrophobic
  1. a A lipid made from fatty acids that have no double bonds between carbon atoms.
  2. b Lacking any affinity to water.
  3. c A substance that alters the speed of a chemical reaction but is not used up in the process.
  4. d A lipid made from fatty acids that have at least one double bond between carbon atoms.
  5. e A molecule that contains only carbon and any of the following: hydrogen, oxygen, nitrogen, sulfur, and/or phosphorous.

5 Multiple choice questions

  1. A change that affects the appearance but not the chemical make-up of a substance.
  2. Carbohydrates that are made up of two monosaccharides.
  3. Simple carbohydrates that contain 3 to 10 carbon atoms.
  4. A chemical reaction in which molecules combine by removing water.
  5. Chemicals that result from atoms linking together.

5 True/False questions

  1. ElementTwo different molecules that have the same chemical formula.

          

  2. ModelAn explanation or representation of something that cannot be seen.

          

  3. Peptide bondA strong attraction between hydrogen atoms and certain other atoms (usually oxygen or nitrogen) in specific molecules.

          

  4. HydrolysisBreaking down complex molecules by the chemical addition of water.

          

  5. IsomersTwo different molecules that have the same chemical formula.