Chapter 2 Section 4 Review

8 Questions | Total Attempts: 225

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Chapter 2 Section 4 Review

The following questions refer to section 4 of chapter 2 (chemical reactions and enzymes). The majority of the exam will be from this section of the chapter.


Questions and Answers
  • 1. 
    • A. 

      Helps in the breakdown of acidic foods in the stomach

    • B. 

      Is not involved in other types of reactions because enzymes are specific

    • C. 

      Is involved in other reactions where temperature and pH are the same

    • D. 

      Helps in the synthesis of sugars during photosynthesis

  • 2. 
    Based on the line graph on page 58 of the text, what can you conclude about the relationship between enzyme concentration and reaction rate?
    • A. 

      Reaction rate decreases with increasing enzyme concentration

    • B. 

      Reaction rate increases with decreasing enzyme concentration

    • C. 

      Reaction rate increases with increasing enzyme concentration

    • D. 

      The variables are not related

  • 3. 
    Which of the following lowers a chemical reaction's activation energy?
    • A. 

      Cohesion

    • B. 

      Adhesion

    • C. 

      Catalysts

    • D. 

      Reactants

    • E. 

      Products

  • 4. 
    The elements or compounds that enter into a chemical reaction are the
    • A. 

      Catalysts

    • B. 

      Reactants

    • C. 

      Products

  • 5. 
    Why is it important that energy releasing reactions take place in living organisms?
  • 6. 
    The bar graph on page 58 of the text book shows the total amount of product from a chemical reaction performed at three different temperatures.  The same enzyme was involved in each case.  Describe the results of the reaction.  How can you explain these results?
  • 7. 
    Why is comparing the way a key and a lock work together a good analogy for explaining how an enzyme works?  In what ways is the analogy not perfect?
  • 8. 
    Which class period are you in?
    • A. 

      1

    • B. 

      4

    • C. 

      7

    • D. 

      8