Question 1

Choose the correct answer from the list below. Not all of the answers will be used.
-The number of carbons in most common fatty acid is ____________.

Accepted Answer

A) ether-linked lipid 
B) triacylglycerol 
C) sterol 
D) amphipathic 
E) 16 or 18
F)organic solvent
G)cholesterol
H)cystein
I)phospholipid
J)prokaryotes
K)glycolipid
L)20 or 24
M)spingosine
N)serine 
A) ether-linked lipid 
B) triacylglycerol 
C) sterol 
D) amphipathic 
E) 16 or 18
F)organic solvent
G)cholesterol
H)cystein
I)phospholipid
J)prokaryotes
K)glycolipid
L)20 or 24
M)spingosine
N)serine E

Question 2

The configuration of most fatty acids is ________________.

Accepted Answer

cis

Question 3

The polar head group of phospholipids is found at which carbon of glycerol?

Accepted Answer

A)  C1 
B)  C2 
C)  C3 
D)  C1 and C2 
E)  C2 and C3 
A)  C1 
B)  C2 
C)  C3 
D)  C1 and C2 
E)  C2 and C3 C

Question 4

Choose the correct answer from the list below. Not all of the answers will be used.
-A lipid is defined as a compound soluble in ________________.

Accepted Answer

A) ether-linked lipid 
B) triacylglycerol 
C) sterol 
D) amphipathic 
E) 16 or 18
F)organic solvent
G)cholesterol
H)cystein
I)phospholipid
J)prokaryotes
K)glycolipid
L)20 or 24
M)spingosine
N)serine 
A) ether-linked lipid 
B) triacylglycerol 
C) sterol 
D) amphipathic 
E) 16 or 18
F)organic solvent
G)cholesterol
H)cystein
I)phospholipid
J)prokaryotes
K)glycolipid
L)20 or 24
M)spingosine
N)serine

Question 5

Explain why fats are an efficient way to store biochemical energy.

Accepted Answer

This has to do with the anhydrous nature

Question 6

Explain the biochemical nature of why trans bonds do not have the same effect as cis bonds on the melting point of fatty acids.

Accepted Answer

This is due to the order or disorder whe

Question 7

Polar head groups of phospholipids are esterified to what functional group?

Accepted Answer

A)  methyl 
B)  phosphate 
C)  ketone 
D)  thiol 
E)  aldehyde 
A)  methyl 
B)  phosphate 
C)  ketone 
D)  thiol 
E)  aldehyde

Question 8

The shorthand notation indicating that there are two cis double bonds between carbons 9 and 10 and again between 12 and 13 is ________________.

Accepted Answer

The answer of The shorthand notation indicating that there are...

Question 9

Eating ____________ increases the w-3 fatty acids, decreasing ____________.

Accepted Answer

A)  arachidonic acid, heart attacks 
B)  a low-fat diet, heart attacks 
C)  fatty fish, heart attacks 
D)  shellfish, lung cancer 
E)  vegetable oils, blood pressure 
A)  arachidonic acid, heart attacks 
B)  a low-fat diet, heart attacks 
C)  fatty fish, heart attacks 
D)  shellfish, lung cancer 
E)  vegetable oils, blood pressure

Question 10

Which of the following is not correct concerning the structure given?

Accepted Answer

A)  It is a component of biological membranes. 
B)  It is amphipathic. 
C)  It is a sphingolipid. 
D)  It is a phosphoglyceride. 
E)  It is phosphatidyl choline. 
A)  It is a component of biological membranes. 
B)  It is amphipathic. 
C)  It is a sphingolipid. 
D)  It is a phosphoglyceride. 
E)  It is phosphatidyl choline.

Question 11

Fatty acids are ionized at physiological pH and so are referred to in their ______________ form.

Accepted Answer

The answer of Fatty acids are ionized at physiological pH...

Question 12

In phosphoglycerides, the fatty acids are linked to the glycerol backbone by the ________________ linkages.

Accepted Answer

The answer of In phosphoglycerides, the fatty acids are linked...

Question 13

Choose the correct answer from the list below. Not all of the answers will be used.
-____________ lipids are less resistant to hydrolysis, potentially because of the way the acyl chain is linked to the glycerol backbone.

Accepted Answer

A) ether-linked lipid 
B) triacylglycerol 
C) sterol 
D) amphipathic 
E) 16 or 18
F)organic solvent
G)cholesterol
H)cystein
I)phospholipid
J)prokaryotes
K)glycolipid
L)20 or 24
M)spingosine
N)serine 
A) ether-linked lipid 
B) triacylglycerol 
C) sterol 
D) amphipathic 
E) 16 or 18
F)organic solvent
G)cholesterol
H)cystein
I)phospholipid
J)prokaryotes
K)glycolipid
L)20 or 24
M)spingosine
N)serine

Question 14

________________ is a membrane lipid composed of sphingosine, fatty acid, and a simple sugar.

Accepted Answer

The answer of ________________ is a membrane lipid composed of...

Question 15

Which phospholipid is enriched in neural sheath membranes?

Accepted Answer

A)  phosphatidic acid 
B)  phosphatidylcholine 
C)  sphingomyelin 
D)  diphophatidylglycerol (cardiolipin) 
E)  phosphatidylinositol 
A)  phosphatidic acid 
B)  phosphatidylcholine 
C)  sphingomyelin 
D)  diphophatidylglycerol (cardiolipin) 
E)  phosphatidylinositol

Question 16

The longer the fatty acid, the ____________ the fatty acid.

Accepted Answer

A)  more oxidized 
B)  lower the melting point of 
C)  higher the melting point of 
D)  more reduced 
E)  more double-bond containing 
A)  more oxidized 
B)  lower the melting point of 
C)  higher the melting point of 
D)  more reduced 
E)  more double-bond containing

Question 17

The reduction in tight packing due to cis double bonds ________________ the melting temperature of a fatty acid.

Accepted Answer

The answer of The reduction in tight packing due to...

Question 18

The notation 12:2 indicates which of the following about a fatty acid?

Accepted Answer

A)  There are 12 carbons in the chain with 2 double bonds. 
B)  There are two 12-carbon chains for this fatty acid. 
C)  The second carbon has a fatty acid double bond. 
D)  The double bond on the 12th carbon has a double bond. 
E)  There are 2 trans double bonds on this 12-carbon fatty acid. 
A)  There are 12 carbons in the chain with 2 double bonds. 
B)  There are two 12-carbon chains for this fatty acid. 
C)  The second carbon has a fatty acid double bond. 
D)  The double bond on the 12th carbon has a double bond. 
E)  There are 2 trans double bonds on this 12-carbon fatty acid.

Question 19

The common name of hexadecanoic acid is ________________.

Accepted Answer

The answer of The common name of hexadecanoic acid is...

Question 20

Steroid hormones come from what lipid?

Accepted Answer

Cholesterol is the m

Exam 11: Lipids

Choose the correct answer from the list below. Not all of the answers will be used. -The number of carbons in most common fatty acid is ____________.

The configuration of most fatty acids is ________________.

The polar head group of phospholipids is found at which carbon of glycerol?

Choose the correct answer from the list below. Not all of the answers will be used. -A lipid is defined as a compound soluble in ________________.

Explain why fats are an efficient way to store biochemical energy.

Explain the biochemical nature of why trans bonds do not have the same effect as cis bonds on the melting point of fatty acids.

Polar head groups of phospholipids are esterified to what functional group?

The shorthand notation indicating that there are two cis double bonds between carbons 9 and 10 and again between 12 and 13 is ________________.

Eating ____________ increases the w-3 fatty acids, decreasing ____________.

Which of the following is not correct concerning the structure given?

Fatty acids are ionized at physiological pH and so are referred to in their ______________ form.

In phosphoglycerides, the fatty acids are linked to the glycerol backbone by the ________________ linkages.

Choose the correct answer from the list below. Not all of the answers will be used. -____________ lipids are less resistant to hydrolysis, potentially because of the way the acyl chain is linked to the glycerol backbone.

________________ is a membrane lipid composed of sphingosine, fatty acid, and a simple sugar.

Which phospholipid is enriched in neural sheath membranes?

The longer the fatty acid, the ____________ the fatty acid.

The reduction in tight packing due to cis double bonds ________________ the melting temperature of a fatty acid.

The notation 12:2 indicates which of the following about a fatty acid?

The common name of hexadecanoic acid is ________________.

Steroid hormones come from what lipid?

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

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

Lipid 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

Eating increases the w-3 fatty acids, decreasing .