Physical Properties Vs Chemical Properties Quiz Chapter 2

74 Questions | Total Attempts: 270

SettingsSettingsSettings
Please wait...
Physical Properties Vs Chemical Properties Quiz Chapter 2

Questions and Answers
  • 1. 
    The atomic weight is only an average of relative weights of an atom and its isotopes, and it may vary from the weight of a specific isotope.
    • A. 

      True

    • B. 

      False

  • 2. 
    Emulsions and colloids are the same thing.
    • A. 

      True

    • B. 

      False

  • 3. 
    Chemical properties are determined primarily by neutrons.
    • A. 

      True

    • B. 

      False

  • 4. 
    A charged particle is generally called an ion.
    • A. 

      True

    • B. 

      False

  • 5. 
    Isotopes differ from each other only in the number of electrons contained.
    • A. 

      True

    • B. 

      False

  • 6. 
    About 60 to 80% of the volume of most living cells consists of organic compounds. 
    • A. 

      True

    • B. 

      False

  • 7. 
    Lipids are a poor source of stored energy.
    • A. 

      True

    • B. 

      False

  • 8. 
    Current information theorizes that Omega-3 fatty acids decrease the risk of heart disease.
    • A. 

      True

    • B. 

      False

  • 9. 
    Glucose is an example of a monosaccharide.
    • A. 

      True

    • B. 

      False

  • 10. 
    A molecule consisting of one carbon atom and two oxygen atoms is correctly written as CO2.
    • A. 

      True

    • B. 

      False

  • 11. 
    The lower the pH, the higher the hydrogen ion concentration.
    • A. 

      True

    • B. 

      False

  • 12. 
    Covalent bonds are generally less stable than ionic bonds.
    • A. 

      True

    • B. 

      False

  • 13. 
    Hydrogen bonds are comparatively strong bonds. 
    • A. 

      True

    • B. 

      False

  • 14. 
    The fact that no chemical bonding occurs between the components of a mixture is the chief difference between mixtures and compounds.
    • A. 

      True

    • B. 

      False

  • 15. 
    Alpha particles, although relatively weak energy particles, are second only to smoking as a cause of lung cancer.
    • A. 

      True

    • B. 

      False

  • 16. 
    No chemical bonding occurs between the components of a mixture.
    • A. 

      True

    • B. 

      False

  • 17. 
    All organic compounds contain carbon.
    • A. 

      True

    • B. 

      False

  • 18. 
    A dipeptide can be broken into two amino acids by dehydration synthesis.
    • A. 

      True

    • B. 

      False

  • 19. 
    Which of the following is necessary for proper conduction of nervous impulses?
    • A. 

      Fe

    • B. 

      I

    • C. 

      P

    • D. 

      Na

  • 20. 
    A phospholipid is usually ________.
    • A. 

      Partially polar and partially nonpolar

    • B. 

      Completely nonpolar

    • C. 

      Completely polar

    • D. 

      Neither polar nor nonpolar

  • 21. 
    In general, the category of lipids that we refer to as oils have ________.
    • A. 

      A high water content

    • B. 

      Long fatty acid chains

    • C. 

      A high degree of saturated bonds

    • D. 

      A high degree of unsaturated bonds

  • 22. 
    The genetic information is coded in DNA by ________.
    • A. 

      The regular alteration of sugar and phosphate molecules

    • B. 

      The sequence of the nucleotides

    • C. 

      The three-dimensional structure of the double helix

    • D. 

      The arrangement of the histones

  • 23. 
    Which of the following is not true of proteins? 
    • A. 

      They may be denatured or coagulated by heat or acidity.

    • B. 

      Some types are called enzymes.

    • C. 

      They appear to be the molecular carriers of the coded hereditary information.

    • D. 

      Their function depends on the three-dimensional shape.

  • 24. 
    The single most abundant protein in the body is ________. 
    • A. 

      DNA

    • B. 

      Hemoglobin

    • C. 

      Collagen

    • D. 

      Glucose

  • 25. 
    Carbohydrates are stored in the liver and muscles in the form of ________. 
    • A. 

      Glucose

    • B. 

      Triglycerides

    • C. 

      Glycogen

    • D. 

      Cholesterol

Back to Top Back to top