Question 1

Which of the following is/are major component(s) of low-density lipoproteins?

Accepted Answer

A)  phospholipid 
B)  apoprotein B-100 
C)  cholesteryl ester 
D)  All of the above. 
E)  None of the above. 
A)  phospholipid 
B)  apoprotein B-100 
C)  cholesteryl ester 
D)  All of the above. 
E)  None of the above.

Question 2

What is the role of CTP in the synthesis of a phospholipid?

Accepted Answer

In the de novo synthesis, the CTP is use

Question 3

Phosphatidate is formed from:

Accepted Answer

A)  glycerol 3-phosphate and two fatty acyl CoA's. 
B)  glycerol and two free fatty acids. 
C)  pyruvate and triacylglycerol. 
D)  glycerol and two fatty acyl CoA's. 
E)  None of the above. 
A)  glycerol 3-phosphate and two fatty acyl CoA's. 
B)  glycerol and two free fatty acids. 
C)  pyruvate and triacylglycerol. 
D)  glycerol and two fatty acyl CoA's. 
E)  None of the above.

Question 4

In a ganglioside, what links the oligosaccharide to the hydroxyl of the ceramide?

Accepted Answer

A)  stearic acid 
B)  glucose 
C)  choline 
D)  sialic acid 
E)  None of the above. 
A)  stearic acid 
B)  glucose 
C)  choline 
D)  sialic acid 
E)  None of the above.

Question 5

HMG CoA is synthesized from acetyl CoA and:

Accepted Answer

A)  oxaloacetate. 
B)  acetoacetyl CoA. 
C)  acetyl CoA. 
D)  farnesyl pyrophosphate. 
E)  mevalonate. 
A)  oxaloacetate. 
B)  acetoacetyl CoA. 
C)  acetyl CoA. 
D)  farnesyl pyrophosphate. 
E)  mevalonate.

Question 6

What are bile salts?

Accepted Answer

Bile salts are amphiphilic derivatives o

Question 7

_______________ is the primary bile salt.

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

_______________ is the process by which LDL enters the cell.

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 9

In membrane-lipid biosynthesis, the nucleotide ___________________ is used to activate the components of the reaction.

Accepted Answer

cytidine t

Question 10

Hydroxylation of cholesterol by cytochrome P450 requires:

Accepted Answer

A)  NADPH. 
B)  activated O2. 
C)  PLP. 
D)  A and B. 
E)  A and C. 
A)  NADPH. 
B)  activated O2. 
C)  PLP. 
D)  A and B. 
E)  A and C.

Exam 29: Lipid Synthesis

Which of the following is/are major component(s) of low-density lipoproteins?

What is the role of CTP in the synthesis of a phospholipid?

Phosphatidate is formed from:

In a ganglioside, what links the oligosaccharide to the hydroxyl of the ceramide?

HMG CoA is synthesized from acetyl CoA and:

What are bile salts?

_______________ is the primary bile salt.

_______________ is the process by which LDL enters the cell.

In membrane-lipid biosynthesis, the nucleotide ___________________ is used to activate the components of the reaction.

Hydroxylation of cholesterol by cytochrome P450 requires:

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

Filters