Prescott's Microbiology
11th Edition
ISBN: 9781260211887
Author: WILLEY, Sandman, Wood
Publisher: McGraw Hill
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Textbook Question
Chapter 10.6, Problem 3CC
How does enzyme activity change with substrate concentration? How does the Michaelis constant (Km) relate to enzyme function?
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Chapter 10 Solutions
Prescott's Microbiology
Ch. 10.1 - Figure 10.2 The Relationship of G to the...Ch. 10.1 - Prob. 1CCCh. 10.1 - Prob. 2CCCh. 10.1 - Prob. 3CCCh. 10.1 - Prob. 4CCCh. 10.2 - Why is ATP called a high-energy molecule? How is...Ch. 10.2 - Describe the energy cycle and ATPs role in it....Ch. 10.3 - Prob. 1MICh. 10.3 - Prob. 2MICh. 10.4 - Figure 10.6 Electron Movement and Reduction...
Ch. 10.4 - How is the direction of electron flow between...Ch. 10.4 - When electrons flow from the NAD+/NADH conjugate...Ch. 10.4 - Which among the following would be the best...Ch. 10.4 - In general terms, how is G related to E0? What is...Ch. 10.4 - Name and briefly describe the major electron...Ch. 10.6 - Will an enzyme with a relatively high Km have a...Ch. 10.6 - Prob. 2MICh. 10.6 - Prob. 1CCCh. 10.6 - Prob. 2CCCh. 10.6 - How does enzyme activity change with substrate...Ch. 10.6 - What special properties might an enzyme isolated...Ch. 10.6 - What are competitive and noncompetitive...Ch. 10.6 - How are enzymes and ribozymes similar? How do they...Ch. 10.7 - Figure 10.19 Allosteric Regulation. The structure...Ch. 10.7 - Prob. 2MICh. 10.7 - Define the terms metabolic channeling and...Ch. 10.7 - Define allosteric enzyme and allosteric effector.Ch. 10.7 - Prob. 3CCCh. 10.7 - Prob. 4CCCh. 10.7 - Prob. 5CCCh. 10 - Prob. 1RCCh. 10 - Prob. 2RCCh. 10 - Prob. 3RCCh. 10 - Examine the structures of macromolecules in...Ch. 10 - Examine the branched pathway shown here for the...Ch. 10 - Prob. 3AL
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- What does a graph of fluorescent relative units (RFUs) vs. time (s) tell about kinetic parameters for enzyme inhibition.arrow_forwardIdris has successfully extracted enzymatic proteins from the fish viscera (intestines and stomach). After homogenization and centrifugation, he managed to pool the crude enzyme extract. He is characterizing the enzymes. Please help Idris by answering the followingquestions:(a). How do I determine the enzyme activity? Please give the unit. (b) How do I get the specific activity of this enzyme? Please give the unit.arrow_forwardOn what structural level of the enzyme (primary, secondary, tertiary or quaternary) does the enzyme- substrate interaction depend?arrow_forward
- Idris has successfully extracted enzymatic proteins from the fish viscera (intestines and stomach). After homogenization and centrifugation, he managed to pool the crude enzyme extract. He is characterizing the enzymes. Please help Idris by answering the followingquestions: (a) How do I run the experiment to find the kinetic properties of the enzyme, KMand Vmax? (b) The enzyme decreased in activity in the presence of NaCl. How do I find out if NaCl is a competitive or non-competitive inhibitor? Explain.arrow_forwardWhat do the values of KM and kcat/KM reveal about an enzyme?arrow_forwardWhat are enzymes? Describe briefly each class of enzyme according to its function. What are the factors that affect enzyme activity? How would you differentiate catalase from peroxidase?arrow_forward
- Idris has successfully extracted enzymatic proteins from the fish viscera (intestines and stomach). After homogenization and centrifugation, he managed to pool the crude enzyme extract. He is characterizing the enzymes. Please help Idris by answering the following questions:(a) How do I determine the protein/enzyme concentration? Please give the unit.arrow_forwardGiven the following equations of the line, a) determine the KM of the substrate that binds the strongest with the enzyme. b) determine which of the following substrates binds the least with the enzymearrow_forwardWhat happens to the enzyme’s native conformation once it is denatured? What structural organization are destroyed by this process? How does changes in enzymatic factors affect the native conformation of enzymes?arrow_forward
- What is the explanation for enzyme specificity?arrow_forwardWhat are the rate constants for the enzyme-catalyzed reaction?arrow_forwardThe equil ibrium constant for the attachment of a substrate to the active site of an enzyme was measured as 200.In a separate experiment, the rate constant for the secondorder attachment was found to be 1.5 x 108 dm3 mol-1 s- 1.What is the rate constant for the loss of the unreacted substrate from the active site?arrow_forward
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Enzyme Kinetics; Author: MIT OpenCourseWare;https://www.youtube.com/watch?v=FXWZr3mscUo;License: Standard Youtube License