Concept explainers
(a)
Interpretation: The validation of the given statement concerning enzymes and their modes of action has to be predicted.
Concept introduction: In lock-and-key model, the enzyme identifies the substrate and then the substrate binds to the active site of the enzyme. The lock and key model has a very high specificity.
(b)
Interpretation: The validation of the given statement concerning enzymes and their modes of action has to be predicted.
Concept introduction: The compound that acts as a catalyst for a biochemical reaction is called enzyme. The reactant present in the enzyme catalyzed reaction is called substrate.
(c)
Interpretation: The validation of the given statement concerning enzymes and their modes of action has to be predicted.
Concept introduction: The enzymes that have both the protein and the nonprotein part are called conjugated enzymes. The protein part of the conjugated enzymes is known as apoenzyme. The non-protein portion of the conjugated enzyme is the enzyme’s cofactor.
(d)
Interpretation: The validation of the given statement concerning enzymes and their modes of action has to be predicted.
Concept introduction: The enzymes that have both the protein and the nonprotein part are called conjugated enzymes. The simple enzymes are composed of only proteins.
Want to see the full answer?
Check out a sample textbook solutionChapter 10 Solutions
Organic And Biological Chemistry
- Indicate 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_forwardIndicate whether each of the following statements about an enzyme active site is true or false. a. It is the location where substrate molecules are produced. b. It always has a fixed, rigid geometry. c. It always has a geometrical shape exactly complementary to that of substrate. d. It always accommodates several structurally related substrates.arrow_forwardIndicate whether each of the following statements about an enzyme active site is true or false. a. It is the location where substrate molecules are converted to product molecules. b. It always has a shape that has a degree of flexibility to it. c. It always has a geometrical shape identical to that of substrate. d. It always accommodates only one specific substrate.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_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
- Organic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistry 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