Microbiology Chapter 2

19 Questions | Total Attempts: 1346

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Microbiology Quizzes & Trivia

Quiz on Chapter 2 Microbio


Questions and Answers
  • 1. 
    Which is the smallest chemical unit of matter?
    • A. 

      An element.

    • B. 

      A molecule.

    • C. 

      An atom.

    • D. 

      Carbon (C)

    • E. 

      None of the above

  • 2. 
    CO2 is an example of a
    • A. 

      Atom.

    • B. 

      Compound.

    • C. 

      electron.

    • D. 

      Element.

    • E. 

      None of the above.

  • 3. 
    How many electrons can fit on the 2nd shell of an element?
    • A. 

      2

    • B. 

      4

    • C. 

      6

    • D. 

      8

    • E. 

      18

  • 4. 
    If an atom looses an electron it has an overall __________ charge.
    • A. 

      Negative

    • B. 

      Neutral

    • C. 

      Positive

    • D. 

      None of the above.

  • 5. 
    Which ring of electrons would have the highest energy level?
    • A. 

      The first ring.

    • B. 

      The last ring.

    • C. 

      The second ring.

    • D. 

      They are all the same.

  • 6. 
    The nucleus of every atom bears a net _______ charge.
    • A. 

      Positive

    • B. 

      Negative

    • C. 

      Neutral

    • D. 

      None of the above.

  • 7. 
    An atom that looses an electron is called a ________, while an atom that gains an electron is called a _______.
    • A. 

      Nucleus, electron

    • B. 

      Anion, Cation

    • C. 

      Element, molecule

    • D. 

      Cation, Anion

  • 8. 
    A bond where pairs of electrons are shared in order to become stable is called 
    • A. 

      A hydrogen bond

    • B. 

      A covalent bond

    • C. 

      An ionic bond.

    • D. 

      James bond.

    • E. 

      Polar bond.

  • 9. 
    A hydrogen bond is the strongest of all bonds.
    • A. 

      True

    • B. 

      False

  • 10. 
    A bond between a cation and an anion is called a 
    • A. 

      Ionic bond

    • B. 

      Covalent bond.

    • C. 

      Hydrogen bond

    • D. 

      Polar bond

  • 11. 
    Hydrogen bonds bind atoms into molecules.
    • A. 

      True

    • B. 

      False

  • 12. 
    The attraction between oppositely charged regions of different molecules is called a ________ bond.
    • A. 

      Hydrogen

    • B. 

      Ionic

    • C. 

      Polar

    • D. 

      Covalent

  • 13. 
    There are 4 main reasons that water is highly useful for living things, select all correct answers.
    • A. 

      Every molecule can form 4 hydrogen bonds with other water molecules.

    • B. 

      Water changes temperature very easily.

    • C. 

      The polarity of water makes it an excellent solvent

    • D. 

      Since water is extremely combustible it has many uses for living things.

    • E. 

      None of the above are correct.

  • 14. 
    In order for a compound to be considered organic it must contain these two elements.
    • A. 

      Sulfur and nitrogen

    • B. 

      Hydrogen and water

    • C. 

      Carbon and oxygen

    • D. 

      Hydrogen and carbon

    • E. 

      Proteins and carbohydrates.

  • 15. 
    Monosaccharides, Disaccharides and Polysaccharides are the major groups of _________.
    • A. 

      Nucleic acids

    • B. 

      Proteins

    • C. 

      Lipids

    • D. 

      Carbohydrates

  • 16. 
    Starch is an example of a 
    • A. 

      Polysaccharide

    • B. 

      Monosaccharide

    • C. 

      Protein

    • D. 

      Nucleic acid

  • 17. 
    Hundreds of monosaccharides joined together is called a __________.
    • A. 

      Microorganism

    • B. 

      Polysaccharide

    • C. 

      Bacteria

    • D. 

      Protein

    • E. 

      Two of the above

  • 18. 
    In order to be called a carbohydrate, the compound must include these three elements.
    • A. 

      C, H, and O

    • B. 

      N, H, and O

    • C. 

      S, N and Na

    • D. 

      None of the above are correct.

  • 19. 
    ______ are essential to the structure and function of membranes.
    • A. 

      Proteins

    • B. 

      Monosaccharides

    • C. 

      Lipids

    • D. 

      Nucleic Acids

    • E. 

      Chuck Norris