answerkeyquiz_1 - Answer key Quiz #2Enzyme Lab 1. (0.5pts.)...

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Answer key Quiz #2—Enzyme Lab 1. (0.5pts.) The optimal temperature is about 50 o 2 . (1.0pt) Temperatures lower than the optimum decrease invertase activity in part because kinetic energy is lower and fewer collisions will occur between enzyme and substrate. Higher temperatures increase reaction rate until it begins to denature the enzyme. At high temperature, the bonds holding the protein in its functional and active conformation are broken. Note- the drop-off in enzyme activity due to denaturation is usually more abrupt . 3. (1pt) All of the enzymes of the heat-resistant bacterium must be able to function at high temperatures. Therefore, the bacterial enzyme has a higher optimum than the human enzyme. The active sites of the two enzymes are probably very similar, but the rest of the bacterial protein is more rigid, stabilized by disulfide bonds and other intrachain bonding such as hydrogen bonds, ionic bonds, and Van der Waals forces. 4. (0.5pt) Most students will think acidic because the stomache is acidic
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This note was uploaded on 12/06/2009 for the course BIO 172 taught by Professor Clark during the Spring '08 term at University of Michigan.

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answerkeyquiz_1 - Answer key Quiz #2Enzyme Lab 1. (0.5pts.)...

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