Question 1

What type of double bond does the succinate dehydrogenase-catalyzed reaction generate?

Accepted Answer

A) saturated 
B) electrophilic cis 
C) stereospecific 
D) trans 
A) saturated 
B) electrophilic cis 
C) stereospecific 
D) trans

Question 2

Which of the following is an allosteric activator of isocitrate dehydrogenase?

Accepted Answer

A) ATP 
B) NADH 
C) [FADH₂] 
D) ADP 
A) ATP 
B) NADH 
C) [FADH₂] 
D) ADP

Question 3

Which molecules may be increased when isocitrate dehydrogenase is inhibited?

Accepted Answer

A) pyruvate and oxaloacetate 
B) glyoxylate and cytosolic acetyl-CoA 
C) succinate and fumarate 
D) lactate and alanine 
A) pyruvate and oxaloacetate 
B) glyoxylate and cytosolic acetyl-CoA 
C) succinate and fumarate 
D) lactate and alanine

Question 4

Which enzyme catalyzes the decarboxylation of pyruvate to acetyl-CoA?

Accepted Answer

A) pyruvate dehydrogenase complex 
B) pyruvate kinase 
C) pyruvate decarboxylase 
D) pyruvate transacylase 
A) pyruvate dehydrogenase complex 
B) pyruvate kinase 
C) pyruvate decarboxylase 
D) pyruvate transacylase

Question 5

Which of the following is NOT a characteristic of the oxidation of malate to oxaloacetate (OAA)?

Accepted Answer

A) It is catalyzed by malate dehydrogenase. 
B) It uses NAD⁺ as an electron acceptor. 
C) It is very exergonic. 
D) It results in higher levels of malate than oxaloacetate. 
A) It is catalyzed by malate dehydrogenase. 
B) It uses NAD⁺ as an electron acceptor. 
C) It is very exergonic. 
D) It results in higher levels of malate than oxaloacetate.

Question 6

Which enzyme phosphorylates mammalian pyruvate dehydrogenase and is allosterically activated by high levels of NADH and acetyl CoA?

Accepted Answer

A) pyruvate kinase 
B) pyruvate kinase. 
C) pyruvate carboxylase 
D) pyruvate dehydrogenase kinase 
A) pyruvate kinase 
B) pyruvate kinase. 
C) pyruvate carboxylase 
D) pyruvate dehydrogenase kinase

What type of double bond does the succinate dehydrogenase-catalyzed reaction generate?

Which of the following is an allosteric activator of isocitrate dehydrogenase?

Which molecules may be increased when isocitrate dehydrogenase is inhibited?

Which enzyme catalyzes the decarboxylation of pyruvate to acetyl-CoA?

Which of the following is NOT a characteristic of the oxidation of malate to oxaloacetate (OAA)?

Which enzyme phosphorylates mammalian pyruvate dehydrogenase and is allosterically activated by high levels of NADH and acetyl CoA?

The Facts of Life: Chemistry Is the Logic of Biological Phenomena

Water: the Medium of Life

Thermodynamics of Biological Systems

Amino Acids

Proteins: Their Primary Structure and Biological Functions

Proteins: Secondary, tertiary, and Quaternary Structure

Carbohydrates and the Glycoconjugates of Cell Surfaces

Lipids

Lipid Biosynthesis

Membranes and Membrane Transport

The Reception and Transmission of Extracellular Information

Enzymes Kinetics and Specificity

Mechanisms of Enzyme Action

Enzyme Regulation

Molecular Motors

Nutrition and the Organization of Metabolism

Glycolysis

Electron Transport and Oxidative Phosphorylation

Photosynthesis

Gluconeogenesis, glycogen Metabolism, and the Pentose Phosphate Pathway

Fatty Acid Catabolism

Nitrogen Acquisition and Amino Acid Metabolism

Nucleotides and Nucleic Acids

Structure of Nucleic Acids

Synthesis and Degradation of Nucleotides

Recombinant Dna: Cloning and Creation of Chimeric Genes

DNA Metabolism: Replication, recombination, and Repair

Transcription and the Regulation of Gene Expression

Protein Synthesis

Post-Transcriptional Regulation of Gene Expression

Completing the Protein Life Cycle: Folding, processing, and Degradation

Metabolic Integration and Organ Specialization

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Exam 18: The Tricarboxylic Acid Cycle

What type of double bond does the succinate dehydrogenase-catalyzed reaction generate?

Which of the following is an allosteric activator of isocitrate dehydrogenase?

Which molecules may be increased when isocitrate dehydrogenase is inhibited?

Which enzyme catalyzes the decarboxylation of pyruvate to acetyl-CoA?

Which of the following is NOT a characteristic of the oxidation of malate to oxaloacetate (OAA)?

Which enzyme phosphorylates mammalian pyruvate dehydrogenase and is allosterically activated by high levels of NADH and acetyl CoA?

The Facts of Life: Chemistry Is the Logic of Biological Phenomena

Water: the Medium of Life

Thermodynamics of Biological Systems

Amino Acids

Proteins: Their Primary Structure and Biological Functions

Proteins: Secondary, tertiary, and Quaternary Structure

Carbohydrates and the Glycoconjugates of Cell Surfaces

Lipids

Lipid Biosynthesis

Membranes and Membrane Transport

The Reception and Transmission of Extracellular Information

Enzymes Kinetics and Specificity

Mechanisms of Enzyme Action

Enzyme Regulation

Molecular Motors

Nutrition and the Organization of Metabolism

Glycolysis

Electron Transport and Oxidative Phosphorylation

Photosynthesis

Gluconeogenesis, glycogen Metabolism, and the Pentose Phosphate Pathway

Fatty Acid Catabolism

Nitrogen Acquisition and Amino Acid Metabolism

Nucleotides and Nucleic Acids

Structure of Nucleic Acids

Synthesis and Degradation of Nucleotides

Recombinant Dna: Cloning and Creation of Chimeric Genes

DNA Metabolism: Replication, recombination, and Repair

Transcription and the Regulation of Gene Expression

Protein Synthesis

Post-Transcriptional Regulation of Gene Expression

Completing the Protein Life Cycle: Folding, processing, and Degradation

Metabolic Integration and Organ Specialization

Filters