Biochemistry
6th Edition
ISBN: 9781305577206
Author: Reginald H. Garrett, Charles M. Grisham
Publisher: Cengage Learning
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Chapter 17, Problem 8P
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Students have asked these similar questions
Metabolic flux is regulated by both availability of substrates and level of
enzyme activity. Match the mechanism by which enzyme activity is regulated
(A, B, C) with a specific example of this type of regulation (1, 2, 3, 4, 5, 6).
Each mechanism is associated with two specific examples.
Mechanism of Regulation
A. Catalytic activity
B. Compartmentation
C. Enzyme levels
A:1,5; B:3,4; C:2,6
OA:1,5; B:3,6; C:2,4
A:2,5: B:3.4. C.16
Example of
Regulation
1. covalent
modification
4. subcellular
localization
2. protein synthesis 5. allosteric control
3. tissue
localization
6. gene transcription
Discuss the role of enzymes in metabolic regulation by describing the following mechanisms.11.1Cellular compartmentalization 11.2 Covalent modification11.3 Zymogens
Please answer these biochemistry questions and
briefly explain
1. Which is false about metabolic regulation?
A: reactions with a large negative delta G are likely
to be regulated
B: reactions that require ATP are regulated
C: glucagon and epineprine both stimulate
glycogen breakdown
D: all steps of all metabolic processes under strict
regulation
I picked D since all steps require sple extent of
regulation however, "strict" regulation is limited to
the irreversible steps
2. which is not a redox reaction in electron
transport chain?
A: Fe-S accepts e- from NADH
B: reiske protein accepts e- from QH2
3. true or false: proton motive force is created
through pumping H+ from matrix to inner
membrane
I put false, isnt the opposite true? pumping H+ from
IMM to matrix
Chapter 17 Solutions
Biochemistry
Ch. 17 - Global Carbon Dioxide Cycling Expressed as Human...Ch. 17 - Prob. 2PCh. 17 - Where Do the O Atoms in Organisms Come From? Name...Ch. 17 - How Do Catabolism and Anabolism Differ? What are...Ch. 17 - How Art the Enzymes of Metabolic Pathways...Ch. 17 - Why Do Anabolic and Catabolic Pathways Differ? Why...Ch. 17 - Prob. 7PCh. 17 - How Is Metabolism Regulated? (Integrates with...Ch. 17 - Prob. 9PCh. 17 - Prob. 10P
Ch. 17 - Which Is “Better: NMR or MS? Compare and...Ch. 17 - How Do Vitamin-Derived Coenzymes Aid Metabolism?...Ch. 17 - What Art the Features of the Series of -omes?...Ch. 17 - Prob. 14PCh. 17 - Prob. 15PCh. 17 - Prob. 16PCh. 17 - Prob. 17PCh. 17 - Prob. 18PCh. 17 - Which of the following experimental approaches is...Ch. 17 - Prob. 20P
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- The FMO3 enzyme has an important physiological function in people. State the normal substrate of FMO3 in people and describe a genetic polymorphism that can reduce the activity of this enzyme. Describe the consequence to people with the reduced FMO3 activity. Give at least one reference from the primary literature (i.e. a scientific journal) to support your answer.arrow_forwardAll metabolic pathways must be regulated to maintain homeostasis. The catalytic activity of anenzyme can be controlled allosterically and/or by reversible covalent modification. Provide anexample of each type of regulation (allosteric and reversible covalent modification) in the contextof a metabolic pathway. Be specific, and be sure to explain the rationale behind the regulatorystrategy.arrow_forwardAAUP NIN) May Time le In the central metabolic processes, the following statement is true: O a. Nonspontaneous processes have a positive delta G O b. Nonspontaneous processes can happen alone if an enzyme is present. O c. Spontaneous processes have a positive delta G O d. Spontaneous processes are usually reversible April 26 (Glycolysis.arrow_forward
- i submitted this 3 times in bartleby and everyone gave differnt answers please answer correctlyarrow_forwardPart II - Lactase Catalyzes the Hydrolysis of Lactose II.i-Enzymes and Sugars The group of college students is on their way to the ice-cream shop and Sanjeet has offered Xiao-Ma Lactaid so that she could go with the group and also eat ice cream despite her lactose intolerance. Xiao-Ma: I've never taken Lactaid. What is it? Sanjeet: Chris: Sanjeet: My mom told me that you become intolerant to dairy because you don't have the enzyme that can digest lactose, which is the sugar found in milk products. Lactaid is a dietary supplement that contains the lactase enzyme. Uh, Sanjeet, remember-I'm a literature major. What's an enzyme? I don't remember what that word really means. Also, is the sugar in the milk different from the other sugar in my food? Finally my biochem class comes in handy in real life! An enzyme is a protein which catalyzes a reaction in the cell. There are tons of different enzymes in your body. The lactase enzyme catalyzes the degrada- tion of lactose into its subunits.…arrow_forwardPART IV. HOW FAST DOES IT GO?Another member of your research group studied the kinetics of theGAPDH from the organism. They also determined if the GAPDH fromthe organism is also inhibited by the known inhibitor of GAPDH fromhumans. A. From the following data, determine the KM (Michaelis-Menten Constant) and the Vmax(maximum velocity) of the enzyme without and with the inhibitor. B. If GAPDH is inhibited, what specific type of inhibition is observed?arrow_forward
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