EBK CAMPBELL BIOLOGY
11th Edition
ISBN: 8220103613828
Author: Reece
Publisher: PEARSON
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Textbook Question
Chapter 9.3, Problem 3CC
VISUAL SKILLS Ø The conversions shown in Figure 9.10 and step 4 of Figure 9.12 are each catalyzed by a large multienzyme complex. What similarities are there in the reactions that occur in these two cases?
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What is the catalytic efficiency of Catalase ?
Table. The values of KM and kcat for some Enzymes and Substrates
Enzyme
Carbonic anhydrase
Substrate
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1.2 x 10-2
2.6 x 10-2
Kcat (s-1)
1.0 x 106
4.0 x 105
Catalase
H2O2
2.5 x 10-2
1.0 x 107
Urease
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2.5 x 10-2
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O A. 4 x 108 M-s-1
O B. 4 x 108 M-1.s-1
OC25x 10-9 M-s1
D. 2.5 x 102 M-1.s-1
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Could you help me with a scheme following: Carboxylic
acids do not readily undergo certain biochemical reactions; thus, they are often converted to
thioesters or phosphonoesters for catalysis. What are two reactions that thioesters and
phosphonoesters can undergo that carboxylic acids cannot? Show enzyme-catalyzed arrow pushing
for both of these mechanisms.
Could you help me with part F to H of the mechanism?:
Using curved arrows, show the mechanism of each step labeled with a blue letter. Draw out abbreviated structures of the coenzymes, so that you can effectively show all arrow pushing. You may abbreviate the coenzymes by putting R groups on the molecule, but do draw out the parts of the structure that are involved in the arrow pushing.
Please note that some of the transformations will require you to show multiple structures to show all of the arrow pushing (particularly some of the coenzyme-mediated steps). You do not need to show specific amino acid residues that perform the catalysis. You can abbreviate acidic amino acid residues “Enz–B–H” and basic residues “B–Enz”.
Chapter 9 Solutions
EBK CAMPBELL BIOLOGY
Ch. 9.1 - Compare and contrast aerobic and anaerobic...Ch. 9.1 - WHAT IF? If the following redox reaction...Ch. 9.2 - VISUAL SKILLS During the redox reaction in...Ch. 9.3 - Prob. 1CCCh. 9.3 - What process in your cells produce the CO2 that...Ch. 9.3 - VISUAL SKILLS The conversions shown in Figure...Ch. 9.4 - WHAT IF? What effect would an absence of O2 have...Ch. 9.4 - WHAT IF? In the absence of O2 as in question 1,...Ch. 9.4 - MAKE CONNECTIONS Membranes must be fluid to...Ch. 9.5 - Consider the NADH formed during glycolysis. What...
Ch. 9.5 - WHAT IF? A glucose-fed yeast cell is moved from...Ch. 9.6 - MAKE CONNECTIONS Compare the structure of a fat...Ch. 9.6 - Prob. 2CCCh. 9.6 - Prob. 3CCCh. 9.6 - VISUAL SKILLS During intense exercise, can a...Ch. 9 - Describe the difference between the two processes...Ch. 9 - Which reactions in glycolysis are the source of...Ch. 9 - What molecular products indicate the complete...Ch. 9 - Briefly explain the mechanism by which ATP...Ch. 9 - Prob. 9.5CRCh. 9 - Prob. 9.6CRCh. 9 - Level 1: Knowledge/Comprehension 1. The immediate...Ch. 9 - Prob. 2TYUCh. 9 - 3. The final electron acceptor of the electron...Ch. 9 - Prob. 4TYUCh. 9 - What is the oxidizing agent in the following...Ch. 9 - When electrons flow along the electron transport...Ch. 9 - Prob. 7TYUCh. 9 - Prob. 8TYUCh. 9 - MAKE CONNECTIONS The proton pump shown in Figures...Ch. 9 - VISUAL SKILLS This Computer model shows the four...Ch. 9 - INTERPRET THE DATA Phosphofructokinase is an...Ch. 9 - DRAW IT The graph here shows the pH difference...Ch. 9 - EVOLUTION CONNECTION AIP synthases are found in...Ch. 9 - SCIENTIFIC INQUIRY In the 1930s, some physicians...Ch. 9 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 9 - SYNTHESIZE YOUR KNOWLEDGE Coenzyme Q (CoQ) is sold...
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