Chapter 4: Cells And Their Env. Active T.

9 Questions | Total Attempts: 103

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Cell Quizzes & Trivia

Questions and Answers
  • 1. 
    Explain sodium potassium pumps. Include why they are important, four steps to their function and whether it is a form of active or passive transport and why.
  • 2. 
    Name three functions of a second messenger.
  • 3. 
    Explain the difference between carrier proteins used in passive transport and those used in active transport.
  • 4. 
    Endocytosis is
    • A. 

      The movement by a vesicle into a cell

    • B. 

      Transportation for larger molecules such as proteins and polysaccrides

    • C. 

      Transportation for waste to leave the cell

  • 5. 
    ____________ is used by nerve cells and other various glands to export modified proteins. (Export by vesicles)
  • 6. 
    The binding of signal molecules to receptor proteins cause changes in the cell including:
    • A. 

      Activation of enzymes in cell

    • B. 

      Triggering formation of second messanger

    • C. 

      A change of permeability of membrane

    • D. 

      All above

  • 7. 
    Hormones are exaples of
  • 8. 
    Beta blockers
    • A. 

      Are given to patients witha rapid heart beat

    • B. 

      Interfere with binding of signal molecules

    • C. 

      Prevent the heart from getting message to speed up unnecessarily

  • 9. 
    Another name for the fighting cells of the immune system. (NOT reffering to a "coloured" cell)
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