Question 1

Drugs called statins lower cholesterol levels because they ________.

Accepted Answer

A) degrade HMG-CoA reductase 
B) bind serum cholesterol 
C) inhibit HMG-CoA reductase 
D) bind bile salts 
A) degrade HMG-CoA reductase 
B) bind serum cholesterol 
C) inhibit HMG-CoA reductase 
D) bind bile salts

Question 2

To oxidize the fatty acid molecule shown below,what enzyme(s)is(are)needed in addition to the enzymes needed for β-oxidation?

Accepted Answer

A) Enoyl-CoA isomerase only. 
B) 2,4-dienoyl-CoA reductase only. 
C) Both enoyl-CoA isomerase and 2,4-dienoyl-CoA reductase. 
D) No additional enzymes are needed besides the normal ones for β-oxidation. 
A) Enoyl-CoA isomerase only. 
B) 2,4-dienoyl-CoA reductase only. 
C) Both enoyl-CoA isomerase and 2,4-dienoyl-CoA reductase. 
D) No additional enzymes are needed besides the normal ones for β-oxidation.

Question 3

Cytosolic HMG-CoA is used for ketone body synthesis.

Accepted Answer

A) True 
 B)False

Question 4

Properties of aspirin may include

Accepted Answer

A) inhibition of COX activity. 
B) increased production of prostaglandins. 
C) Both A and B. 
D) None of the above. 
A) inhibition of COX activity. 
B) increased production of prostaglandins. 
C) Both A and B. 
D) None of the above.

Question 5

Elevated levels of the hormone ________ stimulate the conversion of triacylglycerols stored in adipose cells to free fatty acids and monoacylglycerols to provide energy when carbohydrate stores are depleted.

Accepted Answer

A) insulin 
B) glucagon 
C) epinephrine 
D) ergosterol 
A) insulin 
B) glucagon 
C) epinephrine 
D) ergosterol

Question 6

The bile salts taurocholate and glycocholate are amphipathic derivatives of cholesterol.

Accepted Answer

A) True 
 B)False

Question 7

The reaction,Palmitoyl-ACP→Palmitate + HS-ACP proceeds via which of the following enzymes?

Accepted Answer

A) Thioesterase. 
B) Ketoacyl-ACP synthase. 
C) Transacylase. 
D) None of the above. 
A) Thioesterase. 
B) Ketoacyl-ACP synthase. 
C) Transacylase. 
D) None of the above.

Question 8

During starvation ketone bodies can take the place of glucose as a fuel for brain cells.

Accepted Answer

A) True 
 B)False

Question 9

What structure is shown below and what is its main function?

Accepted Answer

A) Coenzyme A;activation of fatty acids before β-oxidation. 
B) Carnitine;transport of fatty acyl CoA into the mitochondrial matrix. 
C) Taurocholate;one of the bile salts. 
D) Acetoacetate;synthesis of fatty acids. 
A) Coenzyme A;activation of fatty acids before β-oxidation. 
B) Carnitine;transport of fatty acyl CoA into the mitochondrial matrix. 
C) Taurocholate;one of the bile salts. 
D) Acetoacetate;synthesis of fatty acids.

Drugs called statins lower cholesterol levels because they ________.

To oxidize the fatty acid molecule shown below,what enzyme(s)is(are)needed in addition to the enzymes needed for β-oxidation?

Cytosolic HMG-CoA is used for ketone body synthesis.

Properties of aspirin may include

Elevated levels of the hormone ________ stimulate the conversion of triacylglycerols stored in adipose cells to free fatty acids and monoacylglycerols to provide energy when carbohydrate stores are depleted.

The bile salts taurocholate and glycocholate are amphipathic derivatives of cholesterol.

The reaction,Palmitoyl-ACP→Palmitate + HS-ACP proceeds via which of the following enzymes?

During starvation ketone bodies can take the place of glucose as a fuel for brain cells.

What structure is shown below and what is its main function?

Introduction to Biochemistry

Water

Amino Acids and the Primary Structures of Proteins

Proteins: Three-Dimensional Structure and Function

Properties of Enzymes

Mechanisms of Enzymes

Coenzymes and Vitamins

Carbohydrates

Lipids and Membranes

Introduction to Metabolism

Glycolysis

Gluconeogenesis, the Pentose Phosphate Pathway, and Glycogen Metabolism

The Citric Acid Cycle

Electron Transport and Atp Synthesis

Photosynthesis

Amino Acid Metabolism

Nucleotide Metabolism

Nucleic Acids

DNA Replication, repair, and Recombination

Transcription and RNA Processing

Protein Synthesis

Filters

Exam 16: Lipid Metabolism

Drugs called statins lower cholesterol levels because they ________.

To oxidize the fatty acid molecule shown below,what enzyme(s)is(are)needed in addition to the enzymes needed for β-oxidation?

Cytosolic HMG-CoA is used for ketone body synthesis.

Properties of aspirin may include

Elevated levels of the hormone ________ stimulate the conversion of triacylglycerols stored in adipose cells to free fatty acids and monoacylglycerols to provide energy when carbohydrate stores are depleted.

The bile salts taurocholate and glycocholate are amphipathic derivatives of cholesterol.

The reaction,Palmitoyl-ACP→Palmitate + HS-ACP proceeds via which of the following enzymes?

During starvation ketone bodies can take the place of glucose as a fuel for brain cells.

What structure is shown below and what is its main function?

Introduction to Biochemistry

Water

Amino Acids and the Primary Structures of Proteins

Proteins: Three-Dimensional Structure and Function

Properties of Enzymes

Mechanisms of Enzymes

Coenzymes and Vitamins

Carbohydrates

Lipids and Membranes

Introduction to Metabolism

Glycolysis

Gluconeogenesis, the Pentose Phosphate Pathway, and Glycogen Metabolism

The Citric Acid Cycle

Electron Transport and Atp Synthesis

Photosynthesis

Amino Acid Metabolism

Nucleotide Metabolism

Nucleic Acids

DNA Replication, repair, and Recombination

Transcription and RNA Processing

Protein Synthesis

Filters