Bundle: Chemistry for Today: General, Organic, and Biochemistry, Loose-Leaf Version, 9th + LMS Integrated OWLv2, 4 terms (24 months) Printed Access Card
9th Edition
ISBN: 9781337598255
Author: Spencer L. Seager
Publisher: Cengage Learning
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Chapter 20, Problem 20.32E
When handling or storing solutions of enzymes, the
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4. Explain the effects of pH, temperature, and concentration on the activity of an enzyme.
When the terminal phosphate is cleaved from the ADP molecule, the products are adenosine diphosphate and inorganic phosphate:
ATP + H2O ––> ADP + Pi
where Pi stands for the various forms of phosphate that exist at the pH of the particular solution. If the total concentration of Pi is 2.5 x 10–2 M, what are the concentrations of the predominant forms of phosphate that exist at pH 7.4?
"All enzymes are proteins, not all proteins are enzymes" Explain this statement ?
Chapter 20 Solutions
Bundle: Chemistry for Today: General, Organic, and Biochemistry, Loose-Leaf Version, 9th + LMS Integrated OWLv2, 4 terms (24 months) Printed Access Card
Ch. 20 - What is the role of enzymes in the body?Ch. 20 - List two ways that enzyme catalysis of a reaction...Ch. 20 - What is the relationship between an enzyme and the...Ch. 20 - Why are so many different enzymes needed?Ch. 20 - Define what is meant by the term enzyme...Ch. 20 - Prob. 20.6ECh. 20 - Prob. 20.7ECh. 20 - Prob. 20.8ECh. 20 - What is the relationship between urea and urease?...Ch. 20 - Match the following enzymes and substrates: Enzyme...
Ch. 20 - Match the following general enzyme names and...Ch. 20 - Prob. 20.12ECh. 20 - Some enzymes consist of protein plus another...Ch. 20 - Prob. 20.14ECh. 20 - Prob. 20.15ECh. 20 - Prob. 20.16ECh. 20 - Prob. 20.17ECh. 20 - Prob. 20.18ECh. 20 - Prob. 20.19ECh. 20 - How is enzyme specificity explained by the...Ch. 20 - Prob. 20.21ECh. 20 - Prob. 20.22ECh. 20 - Prob. 20.23ECh. 20 - What observations may be used in experiments to...Ch. 20 - Prob. 20.25ECh. 20 - Prob. 20.26ECh. 20 - Prob. 20.27ECh. 20 - Write a single sentence to summarize the...Ch. 20 - Prob. 20.29ECh. 20 - Prob. 20.30ECh. 20 - Prob. 20.31ECh. 20 - When handling or storing solutions of enzymes, the...Ch. 20 - Prob. 20.33ECh. 20 - Prob. 20.34ECh. 20 - Prob. 20.35ECh. 20 - List an antidote for each of the two poisons in...Ch. 20 - Prob. 20.37ECh. 20 - Prob. 20.38ECh. 20 - Describe the importance of zymogens in the body....Ch. 20 - Prob. 20.40ECh. 20 - Prob. 20.41ECh. 20 - Name and contrast the two types of modulators.Ch. 20 - Prob. 20.43ECh. 20 - Prob. 20.44ECh. 20 - Prob. 20.45ECh. 20 - Prob. 20.46ECh. 20 - Prob. 20.47ECh. 20 - Prob. 20.48ECh. 20 - Prob. 20.49ECh. 20 - Prob. 20.50ECh. 20 - Prob. 20.51ECh. 20 - Prob. 20.52ECh. 20 - Prob. 20.53ECh. 20 - Prob. 20.54ECh. 20 - Explain how the pasteurization of milk utilizes...Ch. 20 - Prob. 20.56ECh. 20 - Prob. 20.57ECh. 20 - Prob. 20.58ECh. 20 - Prob. 20.59ECh. 20 - Why are enzymes that are used for laboratory or...Ch. 20 - Describe the difference between graphs showing...Ch. 20 - Answer the question associated with Figure 20.3....Ch. 20 - Prob. 20.63ECh. 20 - Prob. 20.64ECh. 20 - Prob. 20.65ECh. 20 - Prob. 20.66ECh. 20 - Prob. 20.67ECh. 20 - Which of the following is not a characteristic of...Ch. 20 - The human body has an average pH of about 7 and a...Ch. 20 - Look at Table 20.4 and identify the proteolytic...Ch. 20 - Saliva contains mucus, water, and _______, which...Ch. 20 - Most human enzymes function best in the...Ch. 20 - The site on an enzyme molecule that does the...Ch. 20 - The process by which an enzyme acts on the...Ch. 20 - In the multienzyme sequence shown below, molecules...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Apatite, Ca5(PO4)3OH, is the mineral in teeth. On a chemical basis explain why drinking milk strengthens young children’s teeth. Sour milk contains lactic acid. Not removing sour milk from the teeth of young children can lead to tooth decay. Use chemical principles to explain why.arrow_forwardHow is enzyme specificity explained by the lock-and-key theory?arrow_forwardDescribe the difference between graphs showing temperature versus reaction rate for an enzyme-catalyzed reaction and an uncatalyzed reaction.arrow_forward
- Explain why a protein is least soluble in an aqueous medium that has a pH equal to the isoelectric point of the protein.arrow_forwardWhat is the active site of an enzyme? What is a substrate?arrow_forwardWhich statement does NOT apply to the lock-and-key theory? O explains the functioning of enzymes explains the need for a specific three dimensional structure found in proteins explains the reason why a particular enzyme is involved with one substrate explains why a substrate-enzyme complex is so difficult to separatearrow_forward
- Choose any amino acid and show, by diagrams of your own creation, how pH will modify the charge distribution of the molecule. Which form is present at the isoelectric point?arrow_forwardSubstrate Enzyme-substrate complex 1. Is this an example of a lock & key or induced fit model of an enzyme? > Enzymearrow_forwardSelect the correct statements about the isoelectric point of a protein. a. the charge on the protein will be neutral. b. the protein molecules will dissolve into solution. c. the pH of the solution will always be exactly 7. d. the pH of the solution will always be greater than 7. e. the number of positive charges on the protein will be equal to the number of negative charges. f. the protein molecules coagulate and precipitate from solution g. the pH of the solution will ways be less than 7.arrow_forward
- ACID-BASE EQUILIBRIA AND SALT EQUILIBRIA (COMMON-ION EFFECT, BUFFER AND SOLUBILITY EQUILIBRIA) The pH of the given solution of lactic acid and lactate is 5.24. Calculate the pKa of lactic acid, when the concentration of lactic acid and lactate are 0.024 M and 0.087 M respectively.arrow_forwardEnzymes function most efficiently at the temperature of a typical cell, which is 37 degrees Celsius. Increases or decreases in temperature can significantly lower the reaction rate. What does this suggest about the importance of temperature-regulating mechanisms in organisms? How does this translate to the development of enzyme assays for clinical laboratory testing equipment? Explain.arrow_forwardAn enzyme requires a Zn2+ ion in order to function correctly. In this case, the Zn2+ is a(n) a. apoenzyme b. coenzyme c. cofactor d. subunit 24. A substance that can bind to an enzyme at a location other than the active site and increase or decrease the activity of that enzyme is called a(n) a. subunit b. proenzyme c. modulator d. feedback inhibitorarrow_forward
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