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5 Written questions

5 Matching questions

  1. hexose
  2. cytosine
  3. cellulose
  4. organic molecule
  5. starch
  1. a a 6 carbon sugar
  2. b molecules of life, always contain carbon and hydrogen
  3. c polysaccharide found in plant cell walls, and accounts for the strong nature of cell walls
  4. d ready storage forms of glucose in plants
  5. e a base of DNA must be paired with thymine

5 Multiple choice questions

  1. a molecular complex of three types of subunit molecules
  2. product of a bond of 2 or more elements
  3. a type of base in DNA. must be paired with adenine
  4. is used to indicate the acidity or basicity of solutions
  5. polymers composed of amino acid monomers

5 True/False questions

  1. carbohydratefunction for quick fuel and short-term energy storage in all organisms. characterized by the presence of the atomic grouping H--C--OH. ratio of nydrogen atoms to oxygen atoms is 2:1


  2. double helixformed when two or more atoms bond together


  3. atomic numberthe number of protons in the nucleus


  4. glucosea hexose, blood sugar


  5. monosaccharidecontains two monosaccharides that have joined during a dehydration reaction


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