Question 1

There are likely to be huge stores of lipid vitamins in healthy animals.

Accepted Answer

A) True 
 B)False

Question 2

Explain how the overall shape of fatty acids is affected by cis and trans double bonds.

Accepted Answer

The cis and trans double bonds contribut

Question 3

Which of the following would not be enriched on the outer side of the lipid bilayer compared to the inner side?

Accepted Answer

A)  Phosphoacylglyerol 
B)  Ganglioside 
C)  Cerebroside 
D)  Sphingomyelin 
A)  Phosphoacylglyerol 
B)  Ganglioside 
C)  Cerebroside 
D)  Sphingomyelin

Question 4

Which of the following lipids is an example of glycolipids?

Accepted Answer

A)  Oleomargarine 
B)  Progesterone 
C)  Cholesterol 
D)  Gangliosides 
A)  Oleomargarine 
B)  Progesterone 
C)  Cholesterol 
D)  Gangliosides

Question 5

Rickets is caused by a deficiency in

Accepted Answer

A)  vitamin A. 
B)  vitamin D. 
C)  vitamin E. 
D)  vitamin K. 
A)  vitamin A. 
B)  vitamin D. 
C)  vitamin E. 
D)  vitamin K.

Question 6

Which of the following four fatty acids has the lowest melting point?
1) CH3CH2CH2CH2CH2COOH
2) CH3CH2CH2CH2CH2CH2CH2CH 2CH2COOH
3) CH3CH2CH2CH2CH2CH2CH2COOH
4) CH3CH=CHCH2CH2COOH

Accepted Answer

A)  1 
B)  2 
C)  3 
D)  4 
A)  1 
B)  2 
C)  3 
D)  4

Question 7

Which of the following is not a product of saponification of a triglyceride?

Accepted Answer

A)  Long chain fatty alcohols. 
B)  The salt of the fatty acids. 
C)  Soaps. 
D)  Glycerol. 
E)  All of these are products of saponification. 
A)  Long chain fatty alcohols. 
B)  The salt of the fatty acids. 
C)  Soaps. 
D)  Glycerol. 
E)  All of these are products of saponification.

Question 8

The degree of membrane fluidity depends on

Accepted Answer

A)  the percentage of lipids that contain choline 
B)  the percentage of glycolipids 
C)  the percentage of fatty acids 
D)  the percentage of unsaturated fatty acids 
A)  the percentage of lipids that contain choline 
B)  the percentage of glycolipids 
C)  the percentage of fatty acids 
D)  the percentage of unsaturated fatty acids

Question 9

Where can membrane proteins be located?

Accepted Answer

A)  entirely within the membrane 
B)  on the surface of the membrane 
C)  in either position 
D)  The position of membrane proteins has never been determined. 
A)  entirely within the membrane 
B)  on the surface of the membrane 
C)  in either position 
D)  The position of membrane proteins has never been determined.

Question 10

Which of the following was not a desired goal of hydrogenating polyunsaturated fatty acids in butter-like spreads?

Accepted Answer

A)  To make the compound have the consistency of butter 
B)  To make the compoound a solid at room temperature 
C)  To put trans double bonds into the molecule 
D)  To remove some of the double bonds in the molecule 
A)  To make the compound have the consistency of butter 
B)  To make the compoound a solid at room temperature 
C)  To put trans double bonds into the molecule 
D)  To remove some of the double bonds in the molecule

Question 11

Plants need cholesterol in their membranes to counteract the rigidity of the cell wall.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following is the best phrase to describe the modern view of membrane structure?

Accepted Answer

A)  Membranes are lipid-lipid bilayers. 
B)  Membranes are lipid-lipid bilayers with associated proteins. 
C)  Membranes are composed solely of lipids and proteins. 
D)  Membranes are a fluid mosaic of lipids and proteins. 
E)  Membranes are found only in eukaryotic cells. 
A)  Membranes are lipid-lipid bilayers. 
B)  Membranes are lipid-lipid bilayers with associated proteins. 
C)  Membranes are composed solely of lipids and proteins. 
D)  Membranes are a fluid mosaic of lipids and proteins. 
E)  Membranes are found only in eukaryotic cells.

Question 13

Which of the following groups is not present in lecithin?

Accepted Answer

A)  Choline 
B)  Fatty acids 
C)  Glycerol 
D)  Phosphate 
E)  All of these are components of lecithin. 
A)  Choline 
B)  Fatty acids 
C)  Glycerol 
D)  Phosphate 
E)  All of these are components of lecithin.

Question 14

Cell membranes typically display asymmetry. What does this mean?

Accepted Answer

A)  The two leaves of a bilayer contain different collections of lipids and proteins. 
B)  The fatty acyl chain on C-1 of a membrane lipid is usually different from that on C-3. 
C)  Only one stereoisomer is ever seen at the chiral C-2 of the glycerol residue in a membrane lipid. 
D)  Membrane lipids only have cis double bonds, never trans . 
A)  The two leaves of a bilayer contain different collections of lipids and proteins. 
B)  The fatty acyl chain on C-1 of a membrane lipid is usually different from that on C-3. 
C)  Only one stereoisomer is ever seen at the chiral C-2 of the glycerol residue in a membrane lipid. 
D)  Membrane lipids only have cis double bonds, never trans .

Question 15

Biological waxes are composed of

Accepted Answer

A)  glycerol and only one fatty acid. 
B)  glycerol and two fatty acids 
C)  a fatty acid and a long-chain alcohol. 
D)  cholesterol and a fatty acid. 
A)  glycerol and only one fatty acid. 
B)  glycerol and two fatty acids 
C)  a fatty acid and a long-chain alcohol. 
D)  cholesterol and a fatty acid.

There are likely to be huge stores of lipid vitamins in healthy animals.

Explain how the overall shape of fatty acids is affected by cis and trans double bonds.

Which of the following would not be enriched on the outer side of the lipid bilayer compared to the inner side?

Which of the following lipids is an example of glycolipids?

Rickets is caused by a deficiency in

Which of the following four fatty acids has the lowest melting point? 1) CH₃CH₂CH₂CH₂CH₂COOH 2) CH₃CH₂CH₂CH₂CH₂CH₂CH₂CH ₂CH₂COOH 3) CH₃CH₂CH₂CH₂CH₂CH₂CH₂COOH 4) CH₃CH=CHCH₂CH₂COOH

Which of the following is not a product of saponification of a triglyceride?

The degree of membrane fluidity depends on

Where can membrane proteins be located?

Which of the following was not a desired goal of hydrogenating polyunsaturated fatty acids in butter-like spreads?

Plants need cholesterol in their membranes to counteract the rigidity of the cell wall.

Which of the following is the best phrase to describe the modern view of membrane structure?

Which of the following groups is not present in lecithin?

Cell membranes typically display asymmetry. What does this mean?

Biological waxes are composed of

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

Nucleic Acids How Structure Conveys Information

Biosynthesis of Nucleic Acids Replication

Transcription of the Genetic Code the 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

Lipid Metabolism

Photosynthesis

The Metabolism of Nitrogen

Integration of Metabolism Cellular Signaling

Filters

Exam 8: Lipids and Proteins Are Associated in Biological Membranes

There are likely to be huge stores of lipid vitamins in healthy animals.

Explain how the overall shape of fatty acids is affected by cis and trans double bonds.

Which of the following would not be enriched on the outer side of the lipid bilayer compared to the inner side?

Which of the following lipids is an example of glycolipids?

Rickets is caused by a deficiency in

Which of the following four fatty acids has the lowest melting point? 1) CH3CH2CH2CH2CH2COOH 2) CH3CH2CH2CH2CH2CH2CH2CH 2CH2COOH 3) CH3CH2CH2CH2CH2CH2CH2COOH 4) CH3CH=CHCH2CH2COOH

Which of the following is not a product of saponification of a triglyceride?

The degree of membrane fluidity depends on

Where can membrane proteins be located?

Which of the following was not a desired goal of hydrogenating polyunsaturated fatty acids in butter-like spreads?

Plants need cholesterol in their membranes to counteract the rigidity of the cell wall.

Which of the following is the best phrase to describe the modern view of membrane structure?

Which of the following groups is not present in lecithin?

Cell membranes typically display asymmetry. What does this mean?

Biological waxes are composed of

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

Nucleic Acids How Structure Conveys Information

Biosynthesis of Nucleic Acids Replication

Transcription of the Genetic Code the 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

Lipid Metabolism

Photosynthesis

The Metabolism of Nitrogen

Integration of Metabolism Cellular Signaling

Filters

Which of the following four fatty acids has the lowest melting point? 1) CH₃CH₂CH₂CH₂CH₂COOH 2) CH₃CH₂CH₂CH₂CH₂CH₂CH₂CH ₂CH₂COOH 3) CH₃CH₂CH₂CH₂CH₂CH₂CH₂COOH 4) CH₃CH=CHCH₂CH₂COOH