Biochemistry
6th Edition
ISBN: 9781305577206
Author: Reginald H. Garrett, Charles M. Grisham
Publisher: Cengage Learning
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Textbook Question
Chapter 19, Problem 22P
- Study Figure 19.18 and decide which of the following statements is false.
- Pyruvate dehydrogenase is inhibited by· NIADH.
- Pyruvate dehydrogenase is inhibited by AΤΡ.
- Citrate synthase is inhibited by NADH.
- Succinyl-CoA activates citrate synthase.
- Acetyl-CoA activates pyruvate carboxylase.
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Students have asked these similar questions
Elevated levels of acetyl-CoA will act as an effector for which of the following enzymes?
more than one can be correct
Pyruvate carboxylase.
Pyruvate kinase
Pyruvate dehydrogenase.
Citrate synthase
a-Ketoglutarate dehydrogenase.
All of the following enzymes catalyze a committed step EXCEPT:
HMG-CoA reductase
Fatty acyl-CoA synthetase
Acetyl-CoA carboxylase I
Pyruvate dehydrogenase complex
All of the above enzymes catalyze a committed step
The brain can directly use all of the following chemicals as energy source EXCEPT:
Acetoacetate
b-hydroxybutyrate
Glucose
Fatty acids
All of the above can directly be used by the brain as energy source
alpha-ketoglutarate dehydrogenase will do which of the following:
Select one:
a.
Pyruvate is decarboxylated to become acetyl-CoA producing NADH and Carbon dioxide
b.
Succinate is oxidized to become fumarate forming FADH2
c.
Succinyl-CoA becomes Succinate and forms one ATP molecule and Coenzyme A-SH
d.
Oxaloacetate combines with the acetyl from acetyl-CoA to produce Citric acid(citrate)
e.
Malate is oxidized to become oxaloacetate forming NADH
f.
Isocitrate and then decarboxylated and oxidized to produce alpha-ketoglutarate, Carbon dioxide and NADH
g.
Citrate is rearranged to become Isocitrate
h.
Fumarate is combined with water to become Malate
i.
alpha-ketoglutarate is oxidized and decarboxylated to produce Succinyl-CoA, Carbon dioxide and NADH
Chapter 19 Solutions
Biochemistry
Ch. 19 - Radiolabeling with 14C-Glutamate Describe the...Ch. 19 - Prob. 2PCh. 19 - Assessing the Effect of Active-Site...Ch. 19 - Understanding the Mechanism of the -Ketoglutarate...Ch. 19 - Understanding the Action of Fluoroacetate on the...Ch. 19 - Prob. 6PCh. 19 - Prob. 7PCh. 19 - Prob. 8PCh. 19 - Prob. 9PCh. 19 - Prob. 10P
Ch. 19 - Prob. 11PCh. 19 - Prob. 12PCh. 19 - Prob. 13PCh. 19 - Prob. 14PCh. 19 - Prob. 15PCh. 19 - Prob. 16PCh. 19 - Understanding the Oxidation of Glucose and Its...Ch. 19 - Prob. 18PCh. 19 - Prob. 19PCh. 19 - Prob. 20PCh. 19 - Complete oxidation of a 16-carbon fatty acid can...Ch. 19 - Study Figure 19.18 and decide which of the...Ch. 19 - Prob. 23P
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biochemistry and related others by exploring similar questions and additional content below.Similar questions
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- Complete the following description of the mechanism of the pyruvate dehydrogenase complex by using words provided. Not all words will be used. Each word will be used only one time. 5 Three enzymes of the pyruvate dehydrogenase complex work together to catalyze the production of Acetyl CoA from Pyruvate. First, a 2-carbon unit composed of Carbons # Pyruvate are added to the co-enzyme and whereas Carbon # of leaves as CO» The C-2 unit together with the co-enzyme is called transferred to the 2nd co-enzyme 11 12 The C-2 unit is then which is initially in its state. The enzyme that catalyzes this step is From here, the C-2 unit is transferred to form a linkage with CoA-SH to generate Acetyl COA Oxidized Hydroxyethyl TPP Phosphodiester Reduced Hydroxypropiony! TPP Lipoamide E-1 NADH 3 Dihydrolipoyl dehydrogenase Thioester 2 HydroxyacetyITPp Dihydropipoyl Transacetylase Type the words in the correct order separated by commas. Example: 1, 3, E-1, Thioester, Lipoamide ...arrow_forwardExplain the difference of carbohydrate (glycolysis) from lipid (β-oxidation) metabolism in terms of producing an acetyl-coA that will enter the Kreb cycle?arrow_forwardWhat enzyme is inhibited by the group of medications known as statins? a)HMG-CoA synthase b)Aromatase c)Fatty acid synthase d)Cyclooxygenasearrow_forward
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