Question 1

"Ketone bodies" are formed when

Accepted Answer

A)  oxaloacetate is converted to acetoacetyl-CoA. 
B)  there is a deficiency of acetyl-CoA. 
C)  there is not enough oxaloacetate to react with available acetyl-CoA. 
D)  an organism consumes excessive amounts of carbohydrate compared to its lipid intake. 
A)  oxaloacetate is converted to acetoacetyl-CoA. 
B)  there is a deficiency of acetyl-CoA. 
C)  there is not enough oxaloacetate to react with available acetyl-CoA. 
D)  an organism consumes excessive amounts of carbohydrate compared to its lipid intake.

Question 2

Which of the following statements concerning the anabolism and catabolism of fatty acids is true?

Accepted Answer

A)  Biotin is required for oxidation of fatty acids but not for anabolism. 
B)  NADPH is required for anabolism of fatty acids and not for catabolism. 
C)  Anabolism occurs in the intermembrane space of mitochondria while catabolism takes place in the mitochondrial matrix. 
D)  Acetyl-CoA is not required for anabolism. 
A)  Biotin is required for oxidation of fatty acids but not for anabolism. 
B)  NADPH is required for anabolism of fatty acids and not for catabolism. 
C)  Anabolism occurs in the intermembrane space of mitochondria while catabolism takes place in the mitochondrial matrix. 
D)  Acetyl-CoA is not required for anabolism.

Question 3

The unsaturated fatty acids that are intermediates in the b-oxidation cycle have what orientation around the double bond?

Accepted Answer

A)  the cis orientation 
B)  the trans orientation 
C)  can have either orientation 
D)  the orientation is not known 
A)  the cis orientation 
B)  the trans orientation 
C)  can have either orientation 
D)  the orientation is not known

Question 4

The cis double bonds of naturally-occurring fatty acids react well with the hydratase enzyme.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following statements concerning b-oxidation of fatty acids is false?

Accepted Answer

A)  Initiation occurs at the methyl end of the fatty acid. 
B)  b-oxidation is the primary route for degradation of fatty acids. 
C)  b-oxidation takes place in the mitochondrial matrix. 
D)  Two-carbon units are successively eliminated with each round. 
A)  Initiation occurs at the methyl end of the fatty acid. 
B)  b-oxidation is the primary route for degradation of fatty acids. 
C)  b-oxidation takes place in the mitochondrial matrix. 
D)  Two-carbon units are successively eliminated with each round.

Question 6

Which group of small molecules best fit the boxes associated with the reaction shown?

Accepted Answer

A)  I 
B)  II 
C)  III 
D)  IV 
A)  I 
B)  II 
C)  III 
D)  IV

"Ketone bodies" are formed when

Which of the following statements concerning the anabolism and catabolism of fatty acids is true?

The unsaturated fatty acids that are intermediates in the b-oxidation cycle have what orientation around the double bond?

The cis double bonds of naturally-occurring fatty acids react well with the hydratase enzyme.

Which of the following statements concerning b-oxidation of fatty acids is false?

Which group of small molecules best fit the boxes associated with the reaction shown?

Biochemistry and the Organization of Cells

Water: The Solvent for Biochemical Reactions

Amino Acids and Peptides

The Three-Dimensional Structure of Proteins

Protein Purification and Characterization Techniques

The Behavior of Proteins: Enzymes

The Behavior of Proteins: Enzymes, Mechanisms, and Control

Lipids and Proteins Are Associated in Biological Membranes

Nucleic Acids: How Structure Conveys Information

Biosynthesis of Nucleic Acids: Replication

Transcription of the Genetic Code: Biosynthesis of Rna

Protein Synthesis: Translation of the Genetic Message

Nucleic Acid Biotechnology Techniques

Viruses, Cancer, and Immunology

The Importance of Energy Changes and Electron Transfer in Metabolism

Carbohydrates

Glycolysis

Storage Mechanisms and Control in Carbohydrate Metabolism

The Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Photosynthesis

The Metabolism of Nitrogen

Integration of Metabolism: Cellular Signaling

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Exam 21: Lipid Metabolism

"Ketone bodies" are formed when

Which of the following statements concerning the anabolism and catabolism of fatty acids is true?

The unsaturated fatty acids that are intermediates in the b-oxidation cycle have what orientation around the double bond?

The cis double bonds of naturally-occurring fatty acids react well with the hydratase enzyme.

Which of the following statements concerning b-oxidation of fatty acids is false?

Which group of small molecules best fit the boxes associated with the reaction shown?

Biochemistry and the Organization of Cells

Water: The Solvent for Biochemical Reactions

Amino Acids and Peptides

The Three-Dimensional Structure of Proteins

Protein Purification and Characterization Techniques

The Behavior of Proteins: Enzymes

The Behavior of Proteins: Enzymes, Mechanisms, and Control

Lipids and Proteins Are Associated in Biological Membranes

Nucleic Acids: How Structure Conveys Information

Biosynthesis of Nucleic Acids: Replication

Transcription of the Genetic Code: Biosynthesis of Rna

Protein Synthesis: Translation of the Genetic Message

Nucleic Acid Biotechnology Techniques

Viruses, Cancer, and Immunology

The Importance of Energy Changes and Electron Transfer in Metabolism

Carbohydrates

Glycolysis

Storage Mechanisms and Control in Carbohydrate Metabolism

The Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Photosynthesis

The Metabolism of Nitrogen

Integration of Metabolism: Cellular Signaling

Filters