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Enzyme Lab



This practice quiz is based on the Lab #9: Enzyme Lab. After thorough preparation for your lab exam, to help test your readiness, quiz yourself and determine which concepts need more attention. The actual exam will not be the same as this one, however some questions may repeat. You may take this quiz as many times as you wish.
Please note that the actual lab exam will be mostly one word or short answers. For this quiz many questions are multiple choice because this computer corrected version will only count your answer as correct if your answer is exactly the same as the answer key. If your answer is marked wrong be sure to compare your answer to the key to see if it is essentially the same answer.


1. What will happen if an enzyme has been frozen, then it is warmed to body temperature and the substrate is added?




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3. What type of bonds or interactions determine protein folding?






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6. Test tube “A” contains an enzyme that has been boiled and allowed to cool. If we add substrate what would you expect to see in the tube?
09.Enzyme_setup_AB.JPG





7. We set up another experiment in which we added the following enzymes instead of peroxidase: Test Tube A = cellulase and Test Tube B = amylase. When hydrogen peroxide is added what would you expect to see happen in the tubes?
09.Enzyme_setup_AB.JPG





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10. Which of the following is FALSE? Substrates-enzyme complexes form due to






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12. Student A, B, and C all used the same ingredients and followed directions accurately in the enzyme experiment. After mixing the ingredients they each measured a different result. Student A measured 10mm, Student B – 15mm, Student C – 12mm.
Assuming they all read the ruler accurately; give a possible explanation for the differences.

09.Enzyme_foam.JPG






13.

14. What was the reason for returning test tubes containing pH 2 and pH 13 buffer and enzyme to the optimum pH?






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17:35 on 21 May 2013
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