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5 Written questions

5 Matching questions

  1. cellulose
  2. oil
  3. hydrolysis reaction
  4. buffer
  5. triglyceride
  1. a of plant origin and are liquid at room temperature
  2. b a fat molecule
  3. c polysaccharide found in plant cell walls, and accounts for the strong nature of cell walls
  4. d a chemical or a combination of chemicals that keeps pH within normal limits
  5. e components of water are added to degrade polymers

5 Multiple choice questions

  1. stores genetic information in the cell and in the organism. it also replicates and transmits this information when it reproduces and when an organism reproduces
  2. a simple organic molecule that exists individually or can link with other monomers to form a polymer
  3. the number of protons in the nucleus
  4. when the sharing of electrons between 2 atoms is fairly equal
  5. nonionized and nonpolar molecules that cannot attract water

5 True/False questions

  1. monosaccharideif the number of carbon atoms in a molecule is low then a carbohydrate is a simple sugar


  2. compounda base of DNA must be paired with thymine


  3. double helixa double strand found in DNA. strands are held together by hydrogen bonds between bases


  4. elementssubstance that cannot be broken down to simpler substances with different properties by ordinary chemical means


  5. ATP (adenosine triphosphate)an energy carrier