Concept explainers
(a)
Interpretation: The validation of the given statement about an enzyme active site has to be stated.
Concept introduction: The site that is comparatively a small part of the enzyme’s structure involved in catalysis is known as the active site.
(b)
Interpretation: The validation of the given statement about an enzyme active site has to be stated.
Concept introduction: The site that is comparatively a small part of the enzyme’s structure involved in catalysis is known as the active site.
(c)
Interpretation: The validation of the given statement about an enzyme active site has to be stated.
Concept introduction: The site that is comparatively a small part of the enzyme’s structure involved in catalysis is known as the active site.
(d)
Interpretation: The validation of the given statement about an enzyme active site has to be stated.
Concept introduction: The site that is comparatively a small part of the enzyme’s structure involved in catalysis is known as the active site.
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General, Organic, and Biological Chemistry
- Describe the importance of zymogens in the body. Give an example of an enzyme that has a zymogen.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_forwardWhat observations may be used in experiments to determine enzyme activity?arrow_forward
- Indicate 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_forwardExplain how the pasteurization of milk utilizes one of the factors that influence enzyme activity.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_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_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_forwardIndicate whether each of the statements in Problem 21-26 applies to (1) the lock-and-key model for enzyme action, (2) the induced-fit model for enzyme action, (3) both models, or (4) neither model.arrow_forward
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