Question 1

Compare and contrast the enzyme deficiencies that result in Tay-Sachs disease,Fabry disease,and Niemann-Pick disease.

Accepted Answer

All of these diseases are the result of

Question 2

Which missing enzyme results in Tay-Sachs disease?

Accepted Answer

A)  phospholipase A2 
B)  sphingomyelinase 
C)    -galactosidase A 
D)  hexosaminidase A 
A)  phospholipase A2 
B)  sphingomyelinase 
C)    -galactosidase A 
D)  hexosaminidase A

Question 3

Using common nomenclature,name the following fatty acid structures.
a.   
b.   
c.

Accepted Answer

a.cis 14:1 ( @#IMG-DLM&_TB6697

Question 4

Predict the fatty acid with the highest melting point.

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 5

Propose a reason that a diet rich in   
-3 fatty acids would result in a decrease in cardiovascular disease.

Accepted Answer

This may be due to the binding of @#IMG-DLM&_TB669

Question 6

Which type of fatty acid plays important roles in cell recognition such as in ABO blood groups?

Accepted Answer

A)  sphingomyelins 
B)  gangliosides 
C)  cerebrosides 
D)  glycerophospholipids 
A)  sphingomyelins 
B)  gangliosides 
C)  cerebrosides 
D)  glycerophospholipids

Question 7

Partial hydrogenation can result in the formation of

Accepted Answer

A)    -3 fatty acids. 
B)    -6 fatty acids. 
C)  cis double bonds. 
D)  trans double bonds. 
A)    -3 fatty acids. 
B)    -6 fatty acids. 
C)  cis double bonds. 
D)  trans double bonds.

Question 8

Predict the essential   -6 fatty acid.

Accepted Answer

A)  trans 18:2 (  9,12) 
B)  cis 18:2 (  9,12) 
C)  trans 18:2 (  6,9) 
D)  cis 18:2 (  6,9) 
A)  trans 18:2 (  9,12) 
B)  cis 18:2 (  9,12) 
C)  trans 18:2 (  6,9) 
D)  cis 18:2 (  6,9)

Question 9

The water-soluble enzyme in the small intestine that hydrolyzes the acyl ester bonds in triacylglycerols is

Accepted Answer

A)  adipocyte. 
B)  albumin. 
C)  lipase. 
D)  colipase. 
A)  adipocyte. 
B)  albumin. 
C)  lipase. 
D)  colipase.

Question 10

Predict the structure of a fatty acid that is trans 18:2 (   9,11).

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 11

Using common nomenclature,name the following fatty acid.

Accepted Answer

A)  trans 14:1 (  7) 
B)  cis 14:1 (  7) 
C)  trans 14:7 (  1) 
D)  cis 14:7 (  1) 
A)  trans 14:1 (  7) 
B)  cis 14:1 (  7) 
C)  trans 14:7 (  1) 
D)  cis 14:7 (  1)

Question 12

Vitamin D3 is converted to 25-hydroxyvitamin D3 in the __________ cells.

Accepted Answer

A)  skin 
B)  kidney 
C)  muscle 
D)  liver 
A)  skin 
B)  kidney 
C)  muscle 
D)  liver

Question 13

Summarize the conversion of 7-hydroxycholestrol into 1,25-hydroxyvitamin D.

Accepted Answer

Skin cells absorb energy from ultraviole

Question 14

Chylomicrons contain a monolayer on the outside of the particle consisting of

Accepted Answer

A)  cerebrosides and phospholipids. 
B)  cerebrosides and sphingolipids. 
C)  phospholipids and cholesterol. 
D)  cholesterol and sphingolipids. 
A)  cerebrosides and phospholipids. 
B)  cerebrosides and sphingolipids. 
C)  phospholipids and cholesterol. 
D)  cholesterol and sphingolipids.

Question 15

Cortisol is a glucocorticoid that regulates

Accepted Answer

A)  blood pressure. 
B)  ion transport in the kidneys. 
C)  testosterone. 
D)  liver metabolism. 
A)  blood pressure. 
B)  ion transport in the kidneys. 
C)  testosterone. 
D)  liver metabolism.

Question 16

One of the functions of the lipid rafts is to

Accepted Answer

A)  act as a storage mechanism for fatty acids. 
B)  control fluidity of the membrane. 
C)  coordinate cell signaling. 
D)  maintain sodium levels in the cell. 
A)  act as a storage mechanism for fatty acids. 
B)  control fluidity of the membrane. 
C)  coordinate cell signaling. 
D)  maintain sodium levels in the cell.

Question 17

Compared with a fatty acid,a wax

Accepted Answer

A)  contains a glycerol backbone. 
B)  has long hydrocarbon chains with a carboxylate group. 
C)  has long hydrocarbon chains connected with an ester linkage. 
D)  contains a polar phosphate group. 
A)  contains a glycerol backbone. 
B)  has long hydrocarbon chains with a carboxylate group. 
C)  has long hydrocarbon chains connected with an ester linkage. 
D)  contains a polar phosphate group.

Question 18

During the process of saponification,fatty acid molecules are released from triacylglycerols by treatment(s)with a strong

Accepted Answer

A)  base. 
B)  acid. 
C)  base and heat. 
D)  acid and heat. 
A)  base. 
B)  acid. 
C)  base and heat. 
D)  acid and heat.

Question 19

Which steroid hormone is synthesized in the ovaries?

Accepted Answer

A)  cortisol 
B)  progesterone 
C)  testosterone 
D)  estradiol 
A)  cortisol 
B)  progesterone 
C)  testosterone 
D)  estradiol

Question 20

Predict the following fatty acid structures.
a. cis 18:2 (   9,12) 
b. trans 18:1 (   9) 
c. trans 20:2 (   11,13)

Accepted Answer

a. @#IMG-DLM&_TB6697

Exam 15: Lipid Structure and Function

Compare and contrast the enzyme deficiencies that result in Tay-Sachs disease,Fabry disease,and Niemann-Pick disease.

Which missing enzyme results in Tay-Sachs disease?

Using common nomenclature,name the following fatty acid structures. a. b. c.

Predict the fatty acid with the highest melting point.

Propose a reason that a diet rich in -3 fatty acids would result in a decrease in cardiovascular disease.

Which type of fatty acid plays important roles in cell recognition such as in ABO blood groups?

Partial hydrogenation can result in the formation of

Predict the essential -6 fatty acid.

The water-soluble enzyme in the small intestine that hydrolyzes the acyl ester bonds in triacylglycerols is

Predict the structure of a fatty acid that is trans 18:2 ( 9,11).

Using common nomenclature,name the following fatty acid.

Vitamin D3 is converted to 25-hydroxyvitamin D3 in the __________ cells.

Summarize the conversion of 7-hydroxycholestrol into 1,25-hydroxyvitamin D.

Chylomicrons contain a monolayer on the outside of the particle consisting of

Cortisol is a glucocorticoid that regulates

One of the functions of the lipid rafts is to

Compared with a fatty acid,a wax

During the process of saponification,fatty acid molecules are released from triacylglycerols by treatment(s)with a strong

Which steroid hormone is synthesized in the ovaries?

Predict the following fatty acid structures. a. cis 18:2 ( 9,12) b. trans 18:1 ( 9) c. trans 20:2 ( 11,13)

Principles of Biochemistry

Physical Biochemistry: Energy Conversion,water,and Membranes

Nucleic Acid Structure and Function

Protein Structure

Methods in Protein Biochemistry

Protein Function

Enzyme Mechanisms

Cell Signaling Systems

Glycolysis: a Paradigm of Metabolic Regulation

The Citrate Cycle

Oxidative Phosphorylation

Photosynthesis

Carbohydrate Structure and Function

Carbohydrate Metabolism

Lipid Metabolism

Amino Acid Metabolism

Nucleotide Metabolism

Metabolic Integration

Dna Replication, repair, and Recombination

Rna Synthesis, processing, and Gene Silencing

Protein Synthesis, posttranslational Modification, and Transport

Gene Regulation

Filters

Predict the structure of a fatty acid that is trans 18:2 ( ^9,11).

Vitamin D₃ is converted to 25-hydroxyvitamin D₃in the __________ cells.

Predict the following fatty acid structures. a. cis 18:2 ( ^9,12) b. trans 18:1 ( ⁹) c. trans 20:2 ( ^11,13)