Question 1

The starting materials necessary to synthesize sphingosine are:

Accepted Answer

A)  palmitoyl CoA and serine. 
B)  acetyl CoA and glycine. 
C)  palmitoyl CoA and aspartate. 
D)  acetyl CoA and glutamine. 
E)  None of the above. 
A)  palmitoyl CoA and serine. 
B)  acetyl CoA and glycine. 
C)  palmitoyl CoA and aspartate. 
D)  acetyl CoA and glutamine. 
E)  None of the above.

Question 2

In the biosynthesis of sphingomyelin, the terminal hydroxyl group of ceramide is substituted with ___________________.

Accepted Answer

The answer of In the biosynthesis of sphingomyelin, the terminal...

Question 3

What are the causes and symptoms of familial hypercholesterolemia?

Accepted Answer

The hallmark of this genetic disease is

Question 4

_______________: The vitamin that is a derivative of cholesterol.

Accepted Answer

A) liver 
B) receptor-mediated endocytosis 
C) phosphatidyl ethanolamine 
D) muscle 
E) lipoprotein particles
F)dihydroxyacetone phosphate
G)vitamin D
H)pregnenolone
I)glycocholate
J)acetyl CoA
K)vitamin A
L)sphingomyelin 
A) liver 
B) receptor-mediated endocytosis 
C) phosphatidyl ethanolamine 
D) muscle 
E) lipoprotein particles
F)dihydroxyacetone phosphate
G)vitamin D
H)pregnenolone
I)glycocholate
J)acetyl CoA
K)vitamin A
L)sphingomyelin

Question 5

Respiratory distress syndrome is caused by a failure in the biosynthetic pathway of:

Accepted Answer

A)  sphingosine. 
B)  gangliosides. 
C)  dipalmitoyl phosphatidyl choline. 
D)  cholesterol. 
E)  bile salts. 
A)  sphingosine. 
B)  gangliosides. 
C)  dipalmitoyl phosphatidyl choline. 
D)  cholesterol. 
E)  bile salts.

Question 6

The membrane component _______________ is produced from the activated precursor CDP-diacylglycerol.

Accepted Answer

A) liver 
B) receptor-mediated endocytosis 
C) phosphatidyl ethanolamine 
D) muscle 
E) lipoprotein particles
F)dihydroxyacetone phosphate
G)vitamin D
H)pregnenolone
I)glycocholate
J)acetyl CoA
K)vitamin A
L)sphingomyelin 
A) liver 
B) receptor-mediated endocytosis 
C) phosphatidyl ethanolamine 
D) muscle 
E) lipoprotein particles
F)dihydroxyacetone phosphate
G)vitamin D
H)pregnenolone
I)glycocholate
J)acetyl CoA
K)vitamin A
L)sphingomyelin

Question 7

Cholesterol and triacylglycerols are transported in body fluids in the form of _______________.

Accepted Answer

A) liver 
B) receptor-mediated endocytosis 
C) phosphatidyl ethanolamine 
D) muscle 
E) lipoprotein particles
F)dihydroxyacetone phosphate
G)vitamin D
H)pregnenolone
I)glycocholate
J)acetyl CoA
K)vitamin A
L)sphingomyelin 
A) liver 
B) receptor-mediated endocytosis 
C) phosphatidyl ethanolamine 
D) muscle 
E) lipoprotein particles
F)dihydroxyacetone phosphate
G)vitamin D
H)pregnenolone
I)glycocholate
J)acetyl CoA
K)vitamin A
L)sphingomyelin

Question 8

Which of the following combines with cholic acid to form a major bile salt?

Accepted Answer

A)  ATP 
B)  glycine 
C)  glycerol 
D)  A and B 
E)  A, B, and C 
A)  ATP 
B)  glycine 
C)  glycerol 
D)  A and B 
E)  A, B, and C

Question 9

All of the carbons in cholesterol are derived from the metabolite _______________.

Accepted Answer

A) liver 
B) receptor-mediated endocytosis 
C) phosphatidyl ethanolamine 
D) muscle 
E) lipoprotein particles
F)dihydroxyacetone phosphate
G)vitamin D
H)pregnenolone
I)glycocholate
J)acetyl CoA
K)vitamin A
L)sphingomyelin 
A) liver 
B) receptor-mediated endocytosis 
C) phosphatidyl ethanolamine 
D) muscle 
E) lipoprotein particles
F)dihydroxyacetone phosphate
G)vitamin D
H)pregnenolone
I)glycocholate
J)acetyl CoA
K)vitamin A
L)sphingomyelin

Question 10

How do blood levels of lipoproteins serve diagnostic purposes?

Accepted Answer

The ratio of LDL to HDL is important. To

Question 11

Vitamin D3 is converted into ___________________, which is an active hormone that functions as a transcription factor.

Accepted Answer

calcitriol

Question 12

___________________ is the 30-carbon (triterpene) precursor of cholesterol.

Accepted Answer

The answer of ___________________ is the 30-carbon (triterpene) precursor of...

Question 13

Describe the various ways that 3-hydroxy-3-methylglutaryl CoA reductase is regulated, including both gene expression and enzyme regulation.

Accepted Answer

There are several mechanisms. (1) Synthe

Question 14

The highest concentration of sphingolipids is found in the:

Accepted Answer

A)  central nervous system. 
B)  lymph system. 
C)  serum. 
D)  All of the above. 
E)  None of the above. 
A)  central nervous system. 
B)  lymph system. 
C)  serum. 
D)  All of the above. 
E)  None of the above.

Question 15

The reduction of the metabolite _______________ supplies glycerol 3-phosphate for acylglycerol synthesis.

Accepted Answer

A) liver 
B) receptor-mediated endocytosis 
C) phosphatidyl ethanolamine 
D) muscle 
E) lipoprotein particles
F)dihydroxyacetone phosphate
G)vitamin D
H)pregnenolone
I)glycocholate
J)acetyl CoA
K)vitamin A
L)sphingomyelin 
A) liver 
B) receptor-mediated endocytosis 
C) phosphatidyl ethanolamine 
D) muscle 
E) lipoprotein particles
F)dihydroxyacetone phosphate
G)vitamin D
H)pregnenolone
I)glycocholate
J)acetyl CoA
K)vitamin A
L)sphingomyelin

Question 16

How is methionine metabolism related to the synthesis of phosphatidyl choline?

Accepted Answer

One way the phosphatidyl choline can be

Question 17

A(n) _________________ is composed of a fatty acid linked to sphingosine via an amide bond.

Accepted Answer

The answer of A(n) _________________ is composed of a fatty...

Question 18

What are the steps in LDL uptake into cells?

Accepted Answer

The LDL contains apolipoprotein B-100, w

Question 19

_______________: The derivative of cholesterol that is the precursor of the steroid hormones.

Accepted Answer

A) liver 
B) receptor-mediated endocytosis 
C) phosphatidyl ethanolamine 
D) muscle 
E) lipoprotein particles
F)dihydroxyacetone phosphate
G)vitamin D
H)pregnenolone
I)glycocholate
J)acetyl CoA
K)vitamin A
L)sphingomyelin 
A) liver 
B) receptor-mediated endocytosis 
C) phosphatidyl ethanolamine 
D) muscle 
E) lipoprotein particles
F)dihydroxyacetone phosphate
G)vitamin D
H)pregnenolone
I)glycocholate
J)acetyl CoA
K)vitamin A
L)sphingomyelin

Question 20

In the biosynthesis of phosphatidates, the fatty acyl group attached to the C-2 position is usually ___________________.

Accepted Answer

The answer of In the biosynthesis of phosphatidates, the fatty...

Exam 29: Lipid Synthesis

The starting materials necessary to synthesize sphingosine are:

In the biosynthesis of sphingomyelin, the terminal hydroxyl group of ceramide is substituted with ___________________.

What are the causes and symptoms of familial hypercholesterolemia?

_______________: The vitamin that is a derivative of cholesterol.

Respiratory distress syndrome is caused by a failure in the biosynthetic pathway of:

The membrane component _______________ is produced from the activated precursor CDP-diacylglycerol.

Cholesterol and triacylglycerols are transported in body fluids in the form of _______________.

Which of the following combines with cholic acid to form a major bile salt?

All of the carbons in cholesterol are derived from the metabolite _______________.

How do blood levels of lipoproteins serve diagnostic purposes?

Vitamin D3 is converted into ___________________, which is an active hormone that functions as a transcription factor.

___________________ is the 30-carbon (triterpene) precursor of cholesterol.

Describe the various ways that 3-hydroxy-3-methylglutaryl CoA reductase is regulated, including both gene expression and enzyme regulation.

The highest concentration of sphingolipids is found in the:

The reduction of the metabolite _______________ supplies glycerol 3-phosphate for acylglycerol synthesis.

How is methionine metabolism related to the synthesis of phosphatidyl choline?

A(n) _________________ is composed of a fatty acid linked to sphingosine via an amide bond.

What are the steps in LDL uptake into cells?

_______________: The derivative of cholesterol that is the precursor of the steroid hormones.

In the biosynthesis of phosphatidates, the fatty acyl group attached to the C-2 position is usually ___________________.

Biochemistry and the Unity of Life

Water, Weak Bonds, and the Generation of Order Out of Chaos

Amino Acids

Protein Three-Dimensional Structure

Techniques in Protein Biochemistry

Basic Concepts of Enzyme Action

Kinetics and Regulation

Mechanisms and Inhibitors

Hemoglobin: an Allosteric Protein

Carbohydrates

Lipids

Membrane Structure and Function

Signal Transduction Pathways

Digestion: Turning a Meal Into Cellular Biochemicals

Metabolism: Basic Concepts and Design

Glycolysis

Gluconeogenesis

Preparation for the Cycle

Harvesting Electrons From the Cycle

The Electron Transport Chain

The Proton-Motive Force

The Light Reactions

The Calvin Cycle

Glycogen Degradation

Glycogen Synthesis

The Pentose Phosphate Pathway

Fatty Acid Degredation

Fatty Acid Synthesis

Amino Acid Degradation and the Urea Cycle

Amino Acids Synthesis

Nucleotide Metabolism

The Structure of Informational Macromolecules: Dna and Rna

DNA Replication

DNA Repair and Recombination

RNA Synthesis and Regulation in Prokaryotes

Gene Expression in Eukaryotes

RNA Processing in Eukaryotes

The Genetic Code

The Mechanism of Protein Synthesis

Recombinant Dna Techniques

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