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5 Written questions

5 Matching questions

  1. Catalyst
  2. Hydrogen bond
  3. Monosaccharides
  4. Disaccharides
  5. Biosynthesis
  1. a A substance that alters the speed of a chemical reaction but is not used up in the process.
  2. b Simple carbohydrates that contain 3 to 10 carbon atoms.
  3. c A strong attraction between hydrogen atoms and certain other atoms (usually oxygen or nitrogen) in specific molecules.
  4. d Carbohydrates that are made up of two monosaccharides.
  5. e The process by which living organisms produce larger molecules from smaller ones.

5 Multiple choice questions

  1. An explanation or representation of something that cannot be seen.
  2. A bond that links amino acids together in a protein.
  3. A lipid made from fatty acids that have no double bonds between carbon atoms.
  4. Carbohydrates that are made up of more than two monosaccharides.
  5. Breaking down complex molecules by the chemical addition of water.

5 True/False questions

  1. IsomersAnything that has mass and takes up space.


  2. Physical changeA change that alters the makeup of the elements or molecules of a substance.


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


  4. PhaseOne of three forms - solid, liquid, or gas - which every substance is capable of attaining.


  5. MoleculesAn explanation or representation of something that cannot be seen.


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