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Concept explainers
(a)
Interpretation: The validation of the given statement about allosteric enzymes has to be stated.
Concept introduction: The enzyme that has two or more protein chains and two kind of binding sites are called allosteric enzymes. Allosteric enzymes have the quaternary structure.
(b)
Interpretation: The validation of the given statement about allosteric enzymes has to be stated.
Concept introduction: The enzyme that has two or more protein chains and two kind of binding sites are called allosteric enzymes. Allosteric enzymes have the quaternary structure.
(c)
Interpretation: The validation of the given statement about allosteric enzymes has to be stated.
Concept introduction: The enzyme that has two or more protein chains and two kind of binding sites are called allosteric enzymes. Allosteric enzymes have the quaternary structure.
(d)
Interpretation: The validation of the given statement about allosteric enzymes has to be stated.
Concept introduction: The enzyme that has two or more protein chains and two kind of binding sites are called allosteric enzymes. Allosteric enzymes have the quaternary structure.
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Chapter 21 Solutions
General, Organic, and Biological Chemistry
- What is the general role of enzymes in the human body?arrow_forwardThe human body has an average pH of about 7 and a temperature of about 37C. Use graphs to illustrate enzyme activity in the human body as a function of the following: a. Substrate concentration b. Enzyme concentration c. pH include pH optimum value d. Temperature include temperature optimum valuearrow_forwardDescribe the importance of zymogens in the body. Give an example of an enzyme that has a zymogen.arrow_forward
- Which of the following is not a characteristic of enzymes? a. They are macromolecules. b. They act on substances. c. They are phospholipids. d. They initiate and decelerate chemical reactions. e. They act as catalysts.arrow_forwardExplain how the pasteurization of milk utilizes one of the factors that influence enzyme activity.arrow_forwardThe site on an enzyme molecule that does the catalytic work is called the: a. binding site. b. allosteric site. c. lock. d. active site.arrow_forward
- Some enzymes consist of protein plus another component. Which of the terms cofactor or coenzyme correctly describes each of the following nonprotein components? a. an inorganic ion b. a nonspecific component c. an organic material d. nicotinic acid.arrow_forwardBased on the graphical information in Problem 21-41 about enzymes A and B a. What is the optimum pH for enzyme B? b. What is the optimum temperature for enzyme A? c. Which enzyme has the greater activity at a pH of 7.2? d. Which enzyme has the greater activity at a temperature of 37.2C?arrow_forwardTo which of the six major classes of enzymes does the enzyme that catalyzes each of the following reactions belong? a. An L isomer is converted to a D isomer. a. A phosphate group is transferred from one substrate to another. b. An amide linkage is hydrolyzed. c. Hydrolysis of a carbohydrate to monosaccharides occurs.arrow_forward
- When handling or storing solutions of enzymes, the pH is usually kept near 7.0. Explain why.arrow_forwardDraw a graph that shows the effect of increasing substrate concentration on the rate of an enzyme-catalyzed reaction (at constant temperature, pH, and enzyme concentration).arrow_forwardWhat is an enzyme turnover number?arrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningOrganic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning
- Introductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage LearningWorld of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningWorld of ChemistryChemistryISBN:9780618562763Author:Steven S. ZumdahlPublisher:Houghton Mifflin College Div
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