Concept explainers
(a)
Interpretation: With the help of given graphical information, the effect of the given change made in reaction conditions on the enzyme activity of enzyme A has to be predicted.
Concept introduction: Most of the enzymes exhibit a narrow maximum activity over a narrow
(b)
Interpretation: With the help of given graphical information, the effect of the given change made in reaction conditions on the enzyme activity of enzyme A has to be predicted.
Concept introduction: Most of the enzymes exhibit a narrow maximum activity over a narrow
(c)
Interpretation: With the help of given graphical information, the effect of the given change made in reaction conditions on the enzyme activity of enzyme A has to be predicted.
Concept introduction: Most of the enzymes exhibit a narrow maximum activity over a narrow
(d)
Interpretation: With the help of given graphical information, the effect of the given change made in reaction conditions on the enzyme activity of enzyme A has to be predicted.
Concept introduction: Most of the enzymes exhibit a narrow maximum activity over a narrow
Want to see the full answer?
Check out a sample textbook solutionChapter 10 Solutions
Organic And Biological Chemistry
- Based on the graphical information in Problem 21-41 about enzymes A and B indicate whether the enzyme activity of enzyme B increases or decreases when the following changes in reaction conditions are made. a. pH decreases from 7.6 to 7.2 b. pH increases from 7.2 to 7.4 c. temperature decreases from 37.8C to 37.6C d. temperature increases from 38.2C to 38.4Carrow_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_forwardIndicate whether each of the following statements concerning different types of enzyme inhibitors is true or false. a. A reversible competitive inhibitor temporarily blocks an enzymes active site. b. A reversible noncompetitive inhibitor permanently changes the shape of an enzymes active site. c. An irreversible inhibitor temporarily changes the shape of an enzymes active site. d. Insecticides are examples of reversible noncompetitive inhibitors.arrow_forward
- Describe the importance of zymogens in the body. Give an example of an enzyme that has a zymogen.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_forwardSome 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_forward
- Indicate whether each of the following statements concerning enzymes and their mode of action are true or false. a. According to the induced-fit model of enzyme action, a substrate must be changed into a cofactor before a chemical reaction occurs. b. The active site of an enzyme is the location within the enzyme where catalysis takes place. c. The protein portion of a conjugated enzyme can accommodate several substrates at the same time. d. Simple enzymes do not have active sites, whereas conjugated enzymes do have active sites.arrow_forwardIndicate whether each of the following phrases describes a simple or a conjugated enzyme. a. An enzyme that has both a protein and a nonprotein portion b. An enzyme that requires Mg2+ ion for activity c. An enzyme in which only amino acids are present d. An enzyme in which a cofactor is presentarrow_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
- World 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