Experiments In The Laboratory! Trivia Questions Quiz

20 Questions | Total Attempts: 47

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Experiments In The Laboratory! Trivia Questions Quiz

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Questions and Answers
  • 1. 
    A biochemist is performing an experiment to determine the effect of chemical X on the growth of bacteria.  Which test tube is the control?
    • A. 

      Test Tube 1

    • B. 

      Test Tube 2

    • C. 

      Test Tube 3

    • D. 

      Test Tube 4

  • 2. 
     Which does a polymer most closely resemble? 
    • A. 

      Circle

    • B. 

      Link in a chain

    • C. 

      Chain

    • D. 

      Intersection

  • 3. 
    Different organisms store glucose in various forms. You discover a new species. Upon chemical analysis, you find that it is comprised of significant amounts of starch. To which organism might this new species be related?
    • A. 

      Fern

    • B. 

      Potato

    • C. 

      Dog

    • D. 

      Bacteria

  • 4. 
    Which is NOT true of lipids?
    • A. 

      They are commonly called fats and oils.

    • B. 

      They are hydrophobic.

    • C. 

      They are good for energy storage.

    • D. 

      They are polar.

  • 5. 
    What makes a water molecule polar?
    • A. 

      Water has the ability to be frozen.

    • B. 

      The pH of pure water varies with the temperature.

    • C. 

      A water molecule has a slight charge on each end.

    • D. 

      A water molecule is made up of three atoms.

  • 6. 
    The diagram below shows two amino acids. What would biochemists call the result of chaining many of these molecules together?
    • A. 

      A carbohydrate

    • B. 

      A lipid

    • C. 

      A nucleic acid

    • D. 

      A protein

  • 7. 
    You are analyzing a compound in a laboratory. You find that it is made up of carbon, hydrogen, and oxygen in a ratio of one carbon, two hydrogen, and one oxygen atom. How will you classify the compound?
    • A. 

      Carbohydrate

    • B. 

      Lipid

    • C. 

      Protein

    • D. 

      Nucleic acid

  • 8. 
    You suspect that a chemical that you are testing in the lab is strongly basic. What might be its pH? 
    • A. 

      2

    • B. 

      7

    • C. 

      11

    • D. 

      14

  • 9. 
    Which class of macromolecules store and communicate genetic information?
    • A. 

      Carbohydrates

    • B. 

      Lipids

    • C. 

      Proteins

    • D. 

      Nucleic acids

  • 10. 
    You are conducting an experiment to determine the presence of simple reducing sugars such as monosaccharides.  Which indicator would you use to test for the presence of glucose?
    • A. 

      Hydrogen Perioxide

    • B. 

      Iodine

    • C. 

      Benedict's solution

    • D. 

      Biuret reagent

  • 11. 
    You are conducting a test to test for the presence of protein in a sample.  What test or solution would you use and what would be you indication of positive for the presence of protein. 
    • A. 

      Iodine test; dark purple to black color change

    • B. 

      Hydrogen Peroxide; presence of bubbles

    • C. 

      Benedict's solution; dark brick red to brown color change after heating

    • D. 

      Biuret test; lavender to dark purple color change

  • 12. 
    What structure is being shown in the image?
    • A. 

      Phospholipid

    • B. 

      Oil

    • C. 

      Cholesterol

    • D. 

      Glycoprotein

  • 13. 
    DNA and RNA are two types of ____________________________ which are composed of the subunits ________________________ . 
    • A. 

      Carbohydrates - glucose

    • B. 

      Lipids - fatty acids

    • C. 

      Proteins - amino acids

    • D. 

      Nucleic acids - nucleotides

  • 14. 
    A florist place a bouquet of white carnations in water containing blue dye.  After a time, the flower petals turn blue.  What process helped the carnations change color?
    • A. 

      Specific heat

    • B. 

      Surface tension

    • C. 

      Cohension and adhesion of water molecules

    • D. 

      Formation of covalent bonds between hydrogen and oxygen molecules.

  • 15. 
    The bond formed between the oxygen of one water molecule to the hydrogen of a different water molecule is called a ______________________  bond. 
    • A. 

      Covalent

    • B. 

      Ionic

    • C. 

      Dehydration

    • D. 

      Hydrogen

  • 16. 
    Small insects can walk across the surface of calm water but they do not break the surface of the water and fall under.  What property of water to have surface tension?
    • A. 

      Adhesion

    • B. 

      Cohension

    • C. 

      Hydrolysis

    • D. 

      High specific heat

  • 17. 
    Large bodies of water, such as lake and oceans,  do not quickly fluctuate in temperature.  What is the reason for the phenomenon?
    • A. 

      Water is an acid

    • B. 

      Water is a versatile solvent

    • C. 

      Water acts as a buffer

    • D. 

      Water has a high heat capacity

  • 18. 
    Two of the four classes of organic compounds are proteins and nucleic acids. What is the relationship between proteins and nucleic acids?
    • A. 

      Nucleic acids use proteins for energy

    • B. 

      Nucleic acids are monomer of proteins

    • C. 

      Proteins are long polymer of nucleic acids

    • D. 

      Nucleic acids contain the instructions to make proteins

  • 19. 
    If you were testing the pH of baking soda, you would expected the pH to be 
    • A. 

      Acidic

    • B. 

      Basic

    • C. 

      Neutral

    • D. 

      Neagative

  • 20. 
    Stomach acid is considered 
    • A. 

      A strong base

    • B. 

      Neutral

    • C. 

      A weak base

    • D. 

      A strong acid