Question 1

Draw and label a typical phospholipid.

Accepted Answer

The phospholipid drawn should resemble F...

Question 2

Octadecatrienoic acid has how many double bonds?

Accepted Answer

A)   0
B)   1
C)   2
D)   3
E)   4F) C) and E)
G) B) and E)

Question 3

A phosphatidate lipid (phosphatidic acid)  has which of the following components?

Accepted Answer

A)   phosphate
B)   glycerol
C)   ester linkage
D)   acyl chain
E)   All of the above.F) C) and D)
G) B) and E)

Question 4

Membranes lipids are primarily comprised of:

Accepted Answer

A)   phospholipids.
B)   glycolipids.
C)   cholesterol.
D)   A and B.
E)   A, B, and C.F) A) and C)
G) A) and B)

Question 5

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

Accepted Answer

Two systems are used. One system refers ...

Question 6

Why might a protein be covalently attached to a lipid?

Accepted Answer

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

Question 7

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) H) and I)
P) H) and M)

Question 8

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) E) and J)
P) F) and K)

Question 9

Define the different chemical characteristics for these phospholipids: phosphatidylserine, phosphatidylcholine, and phosphatidylinositol.

Accepted Answer

See Figure for each ...

Question 10

What is the difference between a sphingolipid and a glycerolipid?

Accepted Answer

A sphingolipid has an alcohol such as a ...

Question 11

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 12

Choose the correct answer from the list below. Not all of the answers will be used.
-____________: A type of lipid with two acyl chains, a glycerol backbone, and a polar head group.

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) B) and H)
P) B) and C)

Question 13

The presence of double bonds in fatty acids limits tight packaging and the number of ________________ interactions.

Accepted Answer

The answer of The presence of double bonds in fatty...

Question 14

How does the structure of cholesterol give it a unique structural quality among the lipids?

Accepted Answer

The flat double-bonded fused r...

Question 15

What does the notation 18:2 for fatty acids imply?

Accepted Answer

In this fatty acid, ...

Question 16

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) None of the above
G) A) and E)

Question 17

Choose the correct answer from the list below. Not all of the answers will be used.
-Lipids which contain carbohydrates is/are ____________.

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) C) and F)
P) F) and L)

Question 18

What are some molecules that form the polar head group of phospholipids? Provide several examples.

Accepted Answer

Examples of head gro...

Question 19

Choose the correct answer from the list below. Not all of the answers will be used.
-____________: A term applied to molecules that have both hydrophilic and hydrophobic moieties.

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) C) and K)
P) I) and K)

Question 20

Choose the correct answer from the list below. Not all of the answers will be used.
-____________: The storage form of fatty acids.

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) F) and G)
P) F) and M)

Exam 11: Lipids

Draw and label a typical phospholipid.

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

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

Define the different chemical characteristics for these phospholipids: phosphatidylserine, phosphatidylcholine, and phosphatidylinositol.

Correct AnswerverifiedSee Figure for each ...View AnswerShow Answer

Membranes lipids are primarily comprised of:

Correct AnswerverifiedShow Answer

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

The presence of double bonds in fatty acids limits tight packaging and the number of ________________ interactions.

Correct AnswerverifiedShow Answer

What does the notation 18:2 for fatty acids imply?

Correct AnswerverifiedIn this fatty acid, ...View AnswerShow Answer

How does the structure of cholesterol give it a unique structural quality among the lipids?

Correct AnswerverifiedThe flat double-bonded fused r...View AnswerShow Answer

What is the difference between a sphingolipid and a glycerolipid?

Correct AnswerverifiedA sphingolipid has an alcohol such as a ...View AnswerShow Answer

Choose the correct answer from the list below. Not all of the answers will be used. -Lipids which contain carbohydrates is/are ____________.

Correct AnswerverifiedShow Answer

Choose the correct answer from the list below. Not all of the answers will be used. -____________: A term applied to molecules that have both hydrophilic and hydrophobic moieties.

Correct AnswerverifiedShow Answer

Choose the correct answer from the list below. Not all of the answers will be used. -____________: A type of lipid with two acyl chains, a glycerol backbone, and a polar head group.

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

Octadecatrienoic acid has how many double bonds?

Correct AnswerverifiedShow Answer

A phosphatidate lipid (phosphatidic acid) has which of the following components?

Correct AnswerverifiedShow Answer

What are some molecules that form the polar head group of phospholipids? Provide several examples.

Correct AnswerverifiedExamples of head gro...View AnswerShow Answer

Choose the correct answer from the list below. Not all of the answers will be used. -____________: The storage form of fatty acids.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedTwo systems are used. One system refers ...View AnswerShow Answer

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The phospholipid drawn should resemble F...
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Knowing that the longer the fatty acid c...
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See Figure for each ...
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In this fatty acid, ...
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The flat double-bonded fused r...
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A sphingolipid has an alcohol such as a ...
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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By attaching to a lipid, the protein is ...
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Examples of head gro...
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Two systems are used. One system refers ...
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