6. Using graph C:a. Explain what happens when hypothermia sets in(when enzymes get too cold!)Reaction Rate vs Substrate ConcentrationISubstrate Concentuationb. Does the same thing happen when enzymes get toohot? Why or why not?7. Explain why graph D levels off. Use enzyme and substratein your explanation. Then tell how you could prevent graphD from leveling off.Rate of Reaction - Enzyme Concentration8.Why doesn't it matter if enzymes keep gettingadded to graph E? What would it take to increase the rate of enzyme activity?Then answer the following questions:1. Transfer of Energy and Matter: Is an enzyme used up in a chemical reaction?Explain.2. Transfer of Energy and Matter:How would your diagram be different if the enzyme activity was anabolicinstead of catabolic? (E.g., an enzyme to build muscle proteins).a.Rate of Reaction

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Answered: 6. Using graph C: a. Explain what…

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

Section: Chapter Questions

Problem 1P

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2
4. Compare and contrast the mechanism used by competitive and noncompetitive enzyme inhibitors. Which type of inhibitor can be "out-competed" by adding extra substrate to a reaction?
Choose the correct effect. * increase decrease not change Raising the temperature slightly will... the rate of reaction Boiling temperature will... the rate of reaction Changing the pH toward the optimal pH will... the rate of reaction Introducing a competitive inhibitor will... the rate of reaction
A. How does each of the following irreversible inhibitors interact with the Enzymes? IV. 1. Cyanide 2. Heavy-metal ions B. List an antidote for each of these two poisons and describe how each functions.
11. Compound X permanently bind by covalent bonds to allosteric site of enzyme C thus completely shutdown the reaction enzyme C. Compound X is best predicted as O A. Activator O B. Competitive inhibitor C. Non competitive reversible inhibitor D. Non competitive irreversible inhibitor 12. There are some terminologies used for enzyme's component as shown in Figure 5. Choose the best term for component labelled Y. * Substite
15) The graph at right shows the results of reaction rate vs. substrate concentration for a Michaelis-Menten type enzyme 16) Th a. True b. False* reaction rate substrate concentration
20) Normally an enzyme has maximal enzyme activity at 37°C, but once it has been heated to 100°C and then cooled back down to 37°C the enzyme is no longer active. Why?
Label the diagram. d a H,0 C Enzyme- substrate products substrate enzyme active site inhibitor complex a d.
V 23. The graph below is a graph of Vmax (a) Label the graph clearly with both the Vmax and the Km. Estimate the Km from this graph giving the correct units. v/Vmax 1.0 0.5 0.0 0.0 vs [S] for an enzyme. Enzyme Activity vs [Substrate] :0.2 0.4 Substrate (HM): 0.6 (b) If the Vmax = 25 mmoles per minute per µmole of enzyme calculate the Keat and the specificity constant."
22
The effect of an inhibitor I on the rate of a single-substrate, enzyme-catalyzed reaction was investigated and gave the following results (See table below). a. What is the mode of action (pure competitive, mixed competitive, uncompetitive or noncompetitive) of the inhibitor? Briefly explain your answer. b. Estimate the value of Km and Vmax for uninhibited reaction.
1. The most commonly used method in measuring LD because it produces a positive rate (NADH) and not affected by product inhibition a. Oliver-Rosalki b. Wrecker Method c. Wroblewski Ladue d. Tanzer-Gilbarg 2. most chemistry enzyme tests follow the zero order reaction where the sufficient amount of substrate is availbale the only limiting factor is the enzyme's substrate a. first statement is true and second statement is false b. both statements are true c. first statement is false and second statement is true d. both statements are true 3. any absorbance change per minute of activity when exceeds must be a. double the measurement and analyze again b. repeat analysis c. discared the reagent and open new one d. dilute sample and repeat analysis and multiply the dilution

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6. Using graph C: a. Explain what happens when hypothermia sets in (when enzymes get too cold!) Reaction Rate vs. Substrate Concentration D I Substrate Concentration b. Does the same thing happen when enzymes get too hot? Why or why not? Rate of Reaction-