Sucrase has an optimum temperature of 37°C and anoptimum pH of 6.2.Determine the effect of the following on its rate ofreaction: 1) no change 2) increasedecrease3)A. increasing the concentration of sucraseB. changing the pH to 4.0C. running the reaction at 70°CWhat are the functions of Allosteric enzymesWhat are some factors that affects enzyme activity?I.II.III.IV.V.VI.Enzyme activity can be regulated by allostericenzymes, feedback control, and covalentmodifications. T/FExamples of Zymogens are the proteasestrypsinogen and chymotrypsinogen. T/F?Trypsin catalyzes the removal of dipeptides frominactive chymotrypsinogen and trypsinogen togive the active proteases chymotrypsin andtrypsin. T/FThe removal of a polypeptide chain fromproinsulin produces the active form of insulin.T/F?A kinase can activate an inactive enzyme byphosphorylation, ie adding a phosphate group.T/F?A phosphatase can activate an inactive enzymeby removal of phosphate. T/F?Identify each description of an inhibitor that is eithercompetitive or noncompetitive.A. Increasing substrate reverses inhibition.B. It binds to the enzyme's surfacebut not to the active site.C. Its structure is similar to that ofthe substrate.D. Inhibition is not reversed by addingmore substrate.What are the types of Reversible inhibition?What are properties of Reversible inhibitors?For example, they cause a loss of enzyme activitythat can be restored.

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Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

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. The optimal conditions for salivary lysozyme (hydrolyzing glycoproteins of bacterial wall) are 37 C - temperature and pH is 5.2. Explain the decrease in this enzyme activity if the temperature will rise up to 60 °C and pH will be changed to 8.0. To answer the question: a) draw the graph of the velocity dependency on temperature and pH; b) calculate the relative enzyme activity if 10 mg of lysozyme catalyzes the formation of 5 uM of the product per 2 minutes. Concidor NH3: 5.
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Sucrase has an optimum temperature of 37°C and an optimum pH of 6.2. Determine the effect of the following on its rate of reaction: 1) no change 2) increase decrease 3) A. increasing the concentration of sucrase B. changing the pH to 4.0 C. running the reaction at 70°C