What pathway supplies the bulk of NADPH needed for fatty acid synthesis in mammals? a) citric...
What pathway supplies the bulk of NADPH needed for fatty acid synthesis in mammals?
a) citric acid cycle
b) pentose phosphate pathway
c) glycolysis
d) light reactions of photosynthesis
e) all of the above
Homework Answers
Answer--- B---- pentose phosphate pathway
The major source of NADPH required for the fatty acid synthesis is pentose phosphate pathway .
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What pathway supplies the bulk of NADPH needed for fatty acid
synthesis in mammals?
a) citric...
All amino acids can be synthesized from intermediates of the: A- the glycolytic pathway, the pentose...
All amino acids can be synthesized from intermediates of the: A- the glycolytic pathway, the pentose phosphate pathway and citric acid cycle. B- citric acid cycle alone. C- the glycolytic pathway and citric acid cycle. D- glycolytic pathway and the pentose phosphate pathway.
Steps 6 and 8 of the citric acid cycles are _____ reactions. phosphate-transfer hydrolysis oxidation–reduction carboxylation...
Steps 6 and 8 of the citric acid cycles are _____ reactions. phosphate-transfer hydrolysis oxidation–reduction carboxylation The 4-carbon intermediates of the citric acid cycle can be used for _____. gluconeogenesis fatty acid synthesis nucleotide synthesis glycolysis Additional oxaloacetate for the citric acid cycle can be generated in one step from pyruvate glyoxylate citrate acetyl-CoA ΔG°' for a reaction is 800 J · mol–1. What is ΔG at 37°C when the ratio of product to reactant concentrations is 0.6? 640 J...
1. 2. 3 The Cori cycle involves which of the following processes? (select all that apply)...
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2.
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The Cori cycle involves which of the following processes? (select all that apply) gluconeogenesis urea cycle citric acid cycle glycolysis (aerobic conditions) glycolysis (anaerobic conditions) transamination 0 beta-oxidation Which of the following is the electron carrier produced in the pentose phosphate pathway? FADH2 NADPH ubiquinone cytochrome C NADH Attaching coenzyme A to a fatty acid at the beginning of beta-oxidation requires: 2 ATP equivalents 1 ATP equivalent 3 ATP equivalents 4 ATP equivalents
1. Which of the following pathways is NOT present in red blood cells? a. Cholesterol synthesis...
1. Which of the following pathways is NOT present in red blood cells? a. Cholesterol synthesis b. Glycolysis c. The pentose phosphate pathway d. Fatty acid oxidation
5. As indicated in the KEGG pathways for fatty acid degradation and biosynthesis which pathway does NOT use acetyl-CoA as a substrate? A. citric acid cycle B. butanoate metabolism C. fatty acid b...
5. As indicated in the KEGG pathways for fatty acid degradation and biosynthesis which pathway does NOT use acetyl-CoA as a substrate? A. citric acid cycle B. butanoate metabolism C. fatty acid biosynthesis D. glycolysis 6. Which statement is consistent with the comparison of fatty acid biosynthesis in humans and in Helicobacter pylori 2017? A. Both organisms use the same multifunctional enzyme B. Humans use separate proteins to catalyze each step, while H. pylori 2017 uses one multifunctional enzyme to...
what is the fate of glucose-6-phosphate in the FED state in the liver? 1 enters glycolysis...
what is the fate of glucose-6-phosphate in the FED state in the liver? 1 enters glycolysis and is oxidzed 2 enters the pathway for glycogen synthesis 3 it is oxidized in the pentose phosphate pathway 4 it will become oxidized to acetyl CoA for fatty acid biosynthesis ALL the above
Section: 14.4 Gluconeogenesis Section 14.5 13) The oxidative phase of the pentose phosphate pathway: a converts...
Section: 14.4 Gluconeogenesis Section 14.5 13) The oxidative phase of the pentose phosphate pathway: a converts pentoses to hexoses. b. produces ribulose-5-phosphate and NADPH for biosynthetic processes. c. is reversible under physiological conditions. d. has an enzyme requiring thiamine pyrophosphate as a coenzyme. Section: 14.5 Pentose Phosphate Pathway of Glucose Oxidation 14) The nonoxidative phase of the pentose phosphate pathway: a. has a heptose intermediate. b. is irreversible under physiological conditions. c. is impaired in glucose-6-phosphate dehydrogenase deficiency. d. is...
SERBP, SCAP, Insig and Sec are proteins associated with regulating the synthesis of HMG-CoA reductase and...
SERBP, SCAP, Insig and Sec are proteins associated with regulating the synthesis of HMG-CoA reductase and other enzymes of cholesterol synthesis and uptake. What compounds bind to SCAP and Insig to down-regulate HMG- CoA reductase and cholesterol synthesis? A. ammonia and urea, B. glutamate and glutamine, OC. sterols and oxysterols, OD IMP and OMP, O E. all of the above, OF none of the above, QUESTION 15 The synthesis of which of the following compounds requires the most ATP and...
Multiple Choice 1.) The mitochondrial form of the PEPCK enzyme, with oxaloacetate as substrate, is a(n)...
Multiple Choice 1.) The mitochondrial form of the PEPCK enzyme, with oxaloacetate as substrate, is a(n) ................ enzyme for the Citric Acid Cycle (a) inhibitory (b) activatory (c) anapleurotic (d) catapleurotic 2.) In the cytosol of the cell, the PEPCK reaction is an enzyme in the pathway of: (a) glycolysis (b) gluconeogenesis (c) glycogen synthesis (d) pentose phosphate pathway
6. Citric Acid Cycle Draw the complete Citric Acid Cycle pathway, include: (a) Total number of...
6. Citric Acid Cycle Draw the complete Citric Acid Cycle pathway, include: (a) Total number of steps in Citric Acid Cycle? (b) Specify the type of reaction in each step? (c) Name the enzymes in each step? (d) How many redox reactions are present in Citric Acid Cycle?
1.
2.
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The Cori cycle involves which of the following processes? (select all that apply) gluconeogenesis urea cycle citric acid cycle glycolysis (aerobic conditions) glycolysis (anaerobic conditions) transamination 0 beta-oxidation Which of the following is the electron carrier produced in the pentose phosphate pathway? FADH2 NADPH ubiquinone cytochrome C NADH Attaching coenzyme A to a fatty acid at the beginning of beta-oxidation requires: 2 ATP equivalents 1 ATP equivalent 3 ATP equivalents 4 ATP equivalents
5. As indicated in the KEGG pathways for fatty acid degradation and biosynthesis which pathway does NOT use acetyl-CoA as a substrate? A. citric acid cycle B. butanoate metabolism C. fatty acid biosynthesis D. glycolysis 6. Which statement is consistent with the comparison of fatty acid biosynthesis in humans and in Helicobacter pylori 2017? A. Both organisms use the same multifunctional enzyme B. Humans use separate proteins to catalyze each step, while H. pylori 2017 uses one multifunctional enzyme to...
Section: 14.4 Gluconeogenesis Section 14.5 13) The oxidative phase of the pentose phosphate pathway: a converts pentoses to hexoses. b. produces ribulose-5-phosphate and NADPH for biosynthetic processes. c. is reversible under physiological conditions. d. has an enzyme requiring thiamine pyrophosphate as a coenzyme. Section: 14.5 Pentose Phosphate Pathway of Glucose Oxidation 14) The nonoxidative phase of the pentose phosphate pathway: a. has a heptose intermediate. b. is irreversible under physiological conditions. c. is impaired in glucose-6-phosphate dehydrogenase deficiency. d. is...
SERBP, SCAP, Insig and Sec are proteins associated with regulating the synthesis of HMG-CoA reductase and other enzymes of cholesterol synthesis and uptake. What compounds bind to SCAP and Insig to down-regulate HMG- CoA reductase and cholesterol synthesis? A. ammonia and urea, B. glutamate and glutamine, OC. sterols and oxysterols, OD IMP and OMP, O E. all of the above, OF none of the above, QUESTION 15 The synthesis of which of the following compounds requires the most ATP and...
6. Citric Acid Cycle Draw the complete Citric Acid Cycle pathway, include: (a) Total number of steps in Citric Acid Cycle? (b) Specify the type of reaction in each step? (c) Name the enzymes in each step? (d) How many redox reactions are present in Citric Acid Cycle?
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