CUSTOM PRESCOTT'S MICROBIOLOGY
11th Edition
ISBN: 9781266032844
Author: WILLEY
Publisher: MCG
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Textbook Question
Chapter 10.6, Problem 4CC
What special properties might an enzyme isolated from a psychrophilic bacterium have? Will enzymes need to lower the activation energy more or less in thermophiles or psychrophiles?
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Chapter 10 Solutions
CUSTOM 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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- There are microorganisms that live in extreme environments like volcanic vents which temperature reaches to 80 degrees celsius. Considering enzymes experience denaturation at higher temperatures, how do the enzymes of these microorganisms remain active at such extreme condition?arrow_forwardWhich of the following is true under the following conditions: an enzyme displaying Michaelis-Menten kinetics where the enzyme concentration is 10 nM, the substrate concentration is 45 mM, and the Km is 50 µM? a) The enzyme has low catalytic efficiency for the substrate. b)The rate of catalysis is near half-maximal velocity. c)The enzymatic reaction is near maximal velocity. d)Halving the substrate concentration has little effect on the catalytic rate. e) There is not enough information provided.arrow_forwardGiven the active site diagram below, indicate the mechanism(s) of catalysis. 5 HO OH HN OH ΝΗ *HN ΝΗ Zn²+ Acid-base, Metal ion 3 Metal ion, By Approximation Metal ion Acid-Base, By Approximation Acid-basearrow_forward
- You inoculate two test tubes with the same amount of identical growth medium and with the same number of identical yeast cells and grow these cells under identical conditions except for the presence or absence of oxygen. b) The cells of both cultures convert glucose to pyruvate via glycolysis, and then further metabolize pyruvate. Are the cells of both cultures able to obtain the same amount of ATP from glycolysis? Explain. Under anaerobic conditions, the carbon from pyruvate will ultimately be found in which molecule? Under aerobic conditions, the carbon from pyruvate will ultimately be found in which molecule?arrow_forwardWhat is the optimal temperature for the enzyme shown above?arrow_forwardWhat is reverse electron flow and why is it necessary? Whichphototrophs need to use reverse electron flow?arrow_forward
- Given the active site below, which best describes the mechanism(s) of catalysis? 5 NH+ 2 HN H₂ 03 NH Mn²+ -3 O Covalent Catalysis Metal ion, By Approximation O Acid-Base, Metal ion By Approximation Acid-Base, Metal ion, By Approximationarrow_forwardA bacterial culture is grown using either octadecane (C18H38) or pentachlorophenol (C6HCl5O) as the sole source of carbon and energy. The cell yield value is determined by dry weight analysis to be 1.49 for octadecane and 0.05 for pentachlorophenol. Using either octadecane or pentachlorophenol, please describe the steps taken (and the final result) showing what percentage of the substrate carbon will be found as cell mass and as CO2? Please show all calculations.arrow_forwardwhy is biocatalysis over inorganic catalysts in enzyme catalysis favored?arrow_forward
- A bacterial culture is grown using either octadecane (C18H38) or pentachlorophenol (C6HOCl5)) as the sole source of carbon and energy. The cell yield value is determined by dry weight analysis to be 1.49 for octadecane and 0.05 for pentachlorophenol. Using either octadecane or pentachlorophenol, please describe the steps taken (and the final result) showing what percentage of the substrate carbon will be found as cell mass and as CO2? Please show all calculations and give correct answers.arrow_forwardA bacterial culture is grown using either octadecane (C18H38) or pentachlorophenol (C6HOCl5)) as the sole source of carbon and energy. The cell yield value is determined by dry weight analysis to be 1.49 for octadecane and 0.05 for pentachlorophenol. Using either octadecane or pentachlorophenol, please describe the steps taken (and the final result) showing what percentage of the substrate carbon will be found as cell mass and as CO2? Please show all calculations and give correct answers. Please answer the question.arrow_forwardProvide an example of covalent catalysis in the mechanism of chymotrypsin. What is the nucleophile involved in the formation of this covalent bond? What enabled this group to become a good nucleophile?arrow_forward
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