CH369.lecture11 - Chapter11 TheCitricAcidCycle or...

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Chapter 11   The Citric Acid Cycle or Tricarboxylic acid cycle ( TCA cycle ) or the Krebs cycle
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The citric acid cycle in context.
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citric acid cycle Unlike a linear pathway such as glycolysis or gluconeogenesis, the citric acid cycle always returns to its starting position, therefore, presents a circular pathway .
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In which of the following locations do eukaryotes house the enzymes of the citric acid cycle? A) Golgi apparatus B) outer mitochondrial membrane C) cytosol D) mitochondrial matrix E) endoplasmic reticulum
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The rate of the citric acid cycle would be INCREASED under which of the following conditions? A) The ADP/ATP ratio is high. B) The ADP/ATP ratio is low. C) The NAD*P+/NADH ratio is low. D) The concentration of oxaloacetate is low. E) B and C
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Avidin, a protein in egg whites, binds biotin very tightly and prevents its absorption in the intestine. Consumption of large amounts of raw eggs can result in a biotin deficiency. Which of the following metabolic conversions cannot occur without biotin? A) Fructose-1,6-bisphosphate → fructose-6-phosphate B) 1,3-Bisphosphoglycerate → glyceraldehyde-3- phosphate C) Pyruvate → oxaloacetate D) Phosphoenolpyruvate → 2-phosphoglycerate E) Oxaloacetate → phosphoenolpyruvate
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citric acid cycle. Citrate synthase
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This note was uploaded on 03/09/2010 for the course CH 369 taught by Professor Kbrowning during the Spring '07 term at University of Texas at Austin.

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CH369.lecture11 - Chapter11 TheCitricAcidCycle or...

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