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,+BIO.CHEM.-MINDTAP
- Describe the importance of zymogens in the body. Give an example of an enzyme that has a zymogen.arrow_forwardHow is enzyme specificity explained by the lock-and-key theory?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
- 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_forwardWhich 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_forward
- The process by which an enzyme acts on the substrate can be described by the: a. lock-and-key model. b. enzyme-and-substrate model. c. enzyme folding model. d. catalytic model.arrow_forwardWrite a brief description of the relationships among each of the following groups of terms or phrases. Answers to the Concept-Linking Exercises are given at the end of the chapter. Enzyme, enzyme substrate, active site, induced fit modelarrow_forwardOnce cooked, egg whites remain in a solid form. However, egg whites that are beaten to form meringue will partially change back to a jellylike form if allowed to stand for a while. Explain these behaviors using the concept of reversible protein denaturation.arrow_forward
- Describe the difference between graphs showing temperature versus reaction rate for an enzyme-catalyzed reaction and an uncatalyzed reaction.arrow_forwardBased 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_forwardWhat observations may be used in experiments to determine enzyme activity?arrow_forward
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