4.1 12. L-Amino-acid oxidase will catalyze reactions of L-amino acids but not of D-amino acids. Which of the following BESTdescribes the characteristic of L-amino acid oxidase?A. Group specificityB. Linkage specificityC. Reaction specificityD. Absolute specificityE. Stereochemical specificity13. What will happen to the Km and Vmax of an enzyme-substrate interaction if you slightly increase the temperature of anenzyme reaction? Assume that no enzyme denaturation occurred.A. Km increases; Vmax also increases.B. Vmax decreases; Vmax decreases.C. Km stays the same; Vmax increases.D. Km decreases; Vmax stays the same.

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Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter6: Metabolism

Section: Chapter Questions

Problem 14RQ: An allosteric inhibitor does which of the following? Binds to an enzyme away from the active site...

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In an enzymatic reaction: a. the enzyme leaves the reaction chemically unchanged. b. if the enzyme molecules approach maximal rate, and the substrate is continually increased, the rate of the reaction does not reach saturation. c. in the stomach, enzymes would have an optimal activity at a neutral pH. d. increasing temperature above the optimal value slows the reaction rate. e. the least important level of organization for an enzyme is its tertiary structure.
Which of the following statements about the allosteric site is true? a. The allosteric site is a second active site on a substrate in a metabolic pathway. b. The allosteric site on an enzyme can allow the product of a metabolic pathway to inhibit that enzyme and stop the pathway. c. When the allosteric site of an enzyme is occupied, the reaction is irreversible and the enzyme cannot react again. d. An allosteric activator prevents binding at the active site. e. An enzyme that possesses allosteric sites does not possess an active site.
Which of the following methods is not used by enzymes to increase the rate of reactions? a. covalent bonding with the substrate at their active site b. bringing reacting molecules into close prosimity c. orienting reactants into positions to favor transition states d. changing charges on reactants to hasten their reactivity e. increasing fit of enzyme and substrate that reduces the energy of activation
1 ).Which of the following accurately describes substrate specificity for serine proteases? A.The binding cleft B.Mg2+ metal activated enzyme C.The catalytic triad D.Facilitates redox chemistry E.Stabilizes the transition state 2). Which of the following amino acid residues would not provide a side chain for acid-base catalysis at physiological pH? select all that apply leucine aspartic acid histidine lysine Please answer both correct i will give u upvote.
1. If a molecule is interating with its side chains of an enzymes active site but it is not the substrate of the enzyme what kind of enzyme regulation is this? 2. What is the change in thetype of bond between Ser 80 -> Arg. 3. Will this change cause the complex to be more or less stable. Explain
1)Catalase a. Is catalase activity endothermic or exothermic? b. What classification of enzyme is catalase? c. Give the Enzyme Commission (E.C.) number of catalase. d. Is catalase reusable? answer all and don't copy from other sources I will downvote for sure
8.Choose the False statement about enzyme binding sites Binding at an allosteric site ca affect binding and catalysis at the Ortho steric site. In addition to ortho steric sites , some enzymes have other sites where catalysis can be conducted. They are called , allosteric sites, from “allo,” the other. In principle, allosteric ligands can have structures that do not resemble those of substrates. Ligand binding at an allosteric site can cause a conformational change of an enzyme. Enzyme can be inhibited by an allosteric ligand that does not complete with substrate.
5. Which of the following statements is/are correct regarding allosteric regulation?a) Allosteric effector controls the activity of an enzyme by irreversible binding.b) Allosteric effector binds to the regulatory sitec) Allosteric activator causes changes in the catalytic site enhancing the substrate binding.d) Allosteric inhibitor causes changes in the catalytic site decreasing the substrate binding. explain each option
1. Can you describe how electrostatic and steric considerations may lead to preferential stabilization of the transition state at an enzyme active site? 2. What factors are involved in “transition-state complementarity”?
1. There are two major categories of enzyme, inhibition, name, and describe them. 1a. Reverse inhibition can be overcome to allow the enzyme to resume is Catley activities. Describe how reversible inhibition can occur and how it can be over come.
1. The concentration of substrate X is high. What happens to the rate of the enzyme-catalyzed reaction if the concentration of substrate X is reduced? Explain. 2. An enzyme has an optimum pH of 7.2. What is most likely to happen to the activity of the enzyme if the pH drops to 6.2? Explain
1. Demonstrate your understanding whether carrier-free biocatalysts should or should not be considered as good biocatalysts. You discussion must be in detail and related to biocatalysis. You can provide detail explanation or provide example. 2. Compare and contrast the following pairs of terms. Relate their similarities and differences to applications in biocatalysis. Zymonomas sp. and Saccharomyces sp.

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L-Amino-acid oxidase will catalyze reactions of L-amino acids but not of D-amino acids. Which of the following BEST describes the characteristic of L-amino acid oxidase? A. Group specificity B. Linkage specificity C. Reaction specificity D. Absolute specificity E. Stereochemical specificity