Principles Of Biology - Phospholipid Quiz

62 Questions | Total Attempts: 227

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Principles Of Biology - Phospholipid Quiz

This quiz covers the materials in lecture handouts 5, 6, and 8. This quiz mainly covers these topics: phospholipids, enzymes, and types of transport.


Questions and Answers
  • 1. 
    If it is perfectly symmetrical than it is ______?
    • A. 

      Nonpolar

    • B. 

      Polar

  • 2. 
    The cell membrane is mostly lipid so it is _____?
    • A. 

      Nonpolar

    • B. 

      Polar

  • 3. 
    What crosses the cell membrane without the help of a protein?
    • A. 

      Polar substances

    • B. 

      Nonpolar substances

  • 4. 
    What letters are short for Adenosine Triphosphate?
  • 5. 
    Facilitated diffusion requires ATP.
    • A. 

      True

    • B. 

      False

  • 6. 
    Integral proteins are required for active transport using vesicles.
    • A. 

      True

    • B. 

      False

  • 7. 
    Nonpolar molecules cross the cell membrane from an area of higher concentration to an area of lower concentration via ________? (multiple answers)
    • A. 

      Facilitated diffusion

    • B. 

      Simple diffusion

    • C. 

      Passive transport

    • D. 

      Active transport

  • 8. 
    Oxygen crosses the cell membrane via ______?(multiple answers)
    • A. 

      Passive transport

    • B. 

      Active transport

    • C. 

      Facilitated diffusion

    • D. 

      Simple diffusion

  • 9. 
    K+ moves from an area of high concentration to low concentration via ______?(multiple answers)
    • A. 

      Facilitated diffusion

    • B. 

      Simple diffusion

    • C. 

      Active transport

    • D. 

      Passive transport

  • 10. 
    K+ moves from an area of low concentration to high concentration via ______?(multiple answers)
    • A. 

      Simple diffusion

    • B. 

      Facilitated diffusion

    • C. 

      Active transport

    • D. 

      Passive transport

  • 11. 
    A white blood cell would engulf a bacterium using what specific type of transport?
    • A. 

      Passive transport using osmosis

    • B. 

      Active transport using pumps

    • C. 

      Active transport using vesicles

  • 12. 
    All types of transport require a membrane.
    • A. 

      True

    • B. 

      False

  • 13. 
    Steroids cross the cell membrane via _______.
    • A. 

      Lipids- passive transport- simple diffusion

    • B. 

      Lipids- active transport- facilitated diffusion

    • C. 

      Lipids- passive transport- osmosis

  • 14. 
    Anything that has a charge will cross the cell membrane via facilitated diffusion.
    • A. 

      True

    • B. 

      False

  • 15. 
    All molecules using passive transport move along their concentration gradient.
    • A. 

      True

    • B. 

      False

  • 16. 
    Osmosis always refers to the movement of what across the membrane?
  • 17. 
    Active transport always uses pumps.
    • A. 

      True

    • B. 

      False

  • 18. 
    Active transport never moves anything along its concentration gradient.
    • A. 

      True

    • B. 

      False

  • 19. 
    When you breathe in oxygen it crosses from your alveoli into your blood via _______.(multiple answers)
    • A. 

      Passive transport

    • B. 

      Active transport

    • C. 

      Simple diffusion

    • D. 

      Facilitated diffusion

  • 20. 
    Lipids are generally _______.
    • A. 

      Hydrophobic

    • B. 

      Hydrophilic

  • 21. 
    Sometimes one end of a lipid is hydro____ while the other end is hydro____.
  • 22. 
    Phospholipids are specialized lipids. They have a _______ group at one end, which makes that end hydrophilic. The other end remains hydrophobic.
  • 23. 
    Glycerol has only ____ carbons.(how many)
  • 24. 
    A phospholipid has a hydrophilic head and only ___ fatty acid tails.(how many)
  • 25. 
    What are the monomers of nucleic acids?
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