June 2009 Chemistry Regents #75

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Question 75

Base your answers to questions 74 through 76 on the information below. During a bread-making process, glucose is converted to ethanol and carbon dioxide, causing the bread dough to rise. Zymase, an enzyme produced by yeast, is a catalyst needed for this reaction. 74 Balance the equation in your answer booklet for the reaction that causes bread dough to rise, using the smallest whole-number coefficients. [1]   1 C6H12O6===> 2 C2H5OH + 2 CO2 75 In the space in your answer booklet, draw a structural formula for the alcohol formed in this reaction. [1] Back to Questions 74-76

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