Question 1

Steroid hormones come from what lipid?

Accepted Answer

Cholesterol is the m...

Question 2

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 3

Draw and label a typical phospholipid.

Accepted Answer

The phospholipid drawn should resemble F...

Question 4

Which phospholipid is enriched in neural sheath membranes?

Accepted Answer

A)   phosphatidic acid
B)   phosphatidylcholine
C)   sphingomyelin
D)   diphophatidylglycerol (cardiolipin) 
E)   phosphatidylinositolF) A) and B)
G) C) and E)

Question 5

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 6

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

Accepted Answer

A)   methyl
B)   phosphate
C)   ketone
D)   thiol
E)   aldehydeF) B) and C)
G) B) and E)

Question 7

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 pressureF) A) and C)
G) A) and B)

Question 8

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 containingF) C) and D)
G) B) and E)

Question 9

___________________ is a sugar-containing lipid which contains a single carbohydrate moiety.

Accepted Answer

The answer of ___________________ is a sugar-containing lipid which contains...

Question 10

Palmitate has how many carbons in its chain?

Accepted Answer

A)   12
B)   14
C)   16
D)   20
E)   24F) A) and B)
G) A) and E)

Question 11

What are the two systems for naming the positions of the double bonds? Provide examples.

Accepted Answer

Two systems are used. One system refers to the double bond relative to the last, or omega (w), carbon. (An example would be w-3 fatty acids.) The other system uses notation that indicates the position of the double bond relative to the carboxyl carbon, and indicates if the bond is cis or trans. (An example would be cis-∆9.)

Question 12

Membranes lipids are primarily comprised of:

Accepted Answer

A)   phospholipids.
B)   glycolipids.
C)   cholesterol.
D)   A and B.
E)   A, B, and C.F) All of the above
G) A) and B) D

Question 13

One important ________________ is EPA (eicosapentaenoic acid), which is found in shellfish.

Accepted Answer

ω-3 fatty acid

Question 14

Use the following to answer questions
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 18F) organic solventG) cholesterolH) cysteinI) phospholipidJ) prokaryotesK) glycolipidL) 20 or 24M) spingosineN) serineO) E) and J)
P) K) and M)

Question 15

Why might a protein be covalently attached to a lipid?

Accepted Answer

By attaching to a lipid, the protein is ...

Question 16

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-____________ is a flat polycylic molecule that is absent in prokaryotic membranes.

Accepted Answer

A)  ether-linked lipid
B)  triacylglycerol
C)  sterol
D)  amphipathic
E)  16 or 18F) organic solventG) cholesterolH) cysteinI) phospholipidJ) prokaryotesK) glycolipidL) 20 or 24M) spingosineN) serineO) D) and F)
P) None of the above

Question 17

Based on your knowledge of lipids, explain why some fats from plants are oils (liquid at room temperature) and animal fats are solid at room temperature.

Accepted Answer

Knowing that the longer the fatty acid c...

Question 18

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.F) A) and E)
G) A) and D)

Question 19

Use the following to answer questions
Choose the correct answer from the list below. Not all of the answers will be used.
-In addition to phospholipids and glycolipids, ____________ is a major type of membrane lipid.

Accepted Answer

A)  ether-linked lipid
B)  triacylglycerol
C)  sterol
D)  amphipathic
E)  16 or 18F) organic solventG) cholesterolH) cysteinI) phospholipidJ) prokaryotesK) glycolipidL) 20 or 24M) spingosineN) serineO) G) and M)
P) C) and K)

Question 20

An w-3 fatty acid:

Accepted Answer

A)   has a methyl group at the carboxyl end of the fatty acid.
B)   has a methyl group on the third carbon of the chain.
C)   has a double bond on the third carbon in from the carboxyl group.
D)   has a triple bond on the third carbon from the methyl end of the fatty acid.
E)   None of the above.F) A) and E)
G) B) and C)

Exam 11: Lipids

Steroid hormones come from what lipid?

Correct Answer
verified
Cholesterol is the m...
View Answer

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

Correct Answer
verified

Draw and label a typical phospholipid.

Correct Answer
verified
The phospholipid drawn should resemble F...
View Answer

Which phospholipid is enriched in neural sheath membranes?

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

Eating increases the w-3 fatty acids, decreasing .

Correct Answer
verified

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

Correct Answer
verified

___________________ is a sugar-containing lipid which contains a single carbohydrate moiety.

Correct Answer
verified

Palmitate has how many carbons in its chain?

Correct Answer
verified

What are the two systems for naming the positions of the double bonds? Provide examples.

Membranes lipids are primarily comprised of:

Correct Answer
verified
D

One important ________________ is EPA (eicosapentaenoic acid), which is found in shellfish.

Correct Answer
verified
ω-3 fatty acid

Use the following to answer questions 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 ____________.

Correct Answer
verified

Why might a protein be covalently attached to a lipid?

Correct Answer
verified
By attaching to a lipid, the protein is ...
View Answer

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -____________ is a flat polycylic molecule that is absent in prokaryotic membranes.

Correct Answer
verified

Based on your knowledge of lipids, explain why some fats from plants are oils (liquid at room temperature) and animal fats are solid at room temperature.

Correct Answer
verified
Knowing that the longer the fatty acid c...
View Answer

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

Correct Answer
verified

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -In addition to phospholipids and glycolipids, ____________ is a major type of membrane lipid.

Correct Answer
verified

An w-3 fatty acid:

Correct Answer
verified

Exam 11: Lipids

Steroid hormones come from what lipid?

Correct AnswerverifiedCholesterol is the m...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

Draw and label a typical phospholipid.

Correct AnswerverifiedThe phospholipid drawn should resemble F...View AnswerShow Answer

Which phospholipid is enriched in neural sheath membranes?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

___________________ is a sugar-containing lipid which contains a single carbohydrate moiety.

Correct AnswerverifiedShow Answer

Palmitate has how many carbons in its chain?

Correct AnswerverifiedShow Answer

What are the two systems for naming the positions of the double bonds? Provide examples.

Membranes lipids are primarily comprised of:

Correct AnswerverifiedD

One important ________________ is EPA (eicosapentaenoic acid), which is found in shellfish.

Correct Answerverifiedω-3 fatty acid

Use the following to answer questions 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 ____________.

Correct AnswerverifiedShow Answer

Why might a protein be covalently attached to a lipid?

Correct AnswerverifiedBy attaching to a lipid, the protein is ...View AnswerShow Answer

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -____________ is a flat polycylic molecule that is absent in prokaryotic membranes.

Correct AnswerverifiedShow Answer

Based on your knowledge of lipids, explain why some fats from plants are oils (liquid at room temperature) and animal fats are solid at room temperature.

Correct AnswerverifiedKnowing that the longer the fatty acid c...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

Use the following to answer questions Choose the correct answer from the list below. Not all of the answers will be used. -In addition to phospholipids and glycolipids, ____________ is a major type of membrane lipid.

Correct AnswerverifiedShow Answer

An w-3 fatty acid:

Correct AnswerverifiedShow Answer

Correct Answer
verified
Cholesterol is the m...
View Answer

Correct Answer
verified

Correct Answer
verified
The phospholipid drawn should resemble F...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Eating increases the w-3 fatty acids, decreasing .

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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D

Correct Answer
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ω-3 fatty acid

Correct Answer
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Correct Answer
verified
By attaching to a lipid, the protein is ...
View Answer

Correct Answer
verified

Correct Answer
verified
Knowing that the longer the fatty acid c...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified