CMB 311 EXAM 2 PRACTICE QUESTIONS WITH
ANSWERS
Lipids include the following classes of compounds, except:
a) Fatty acids
b) Steroids
c) Sphingolipids
d) Triacylglycerols
e) All of these are lipids. - ANSWER e) All of these are lipids.
Cerebroside is composed of all of the following, except:
a) Sphingosine
b) Fatty acid
c) Phosphate
d) Sugar
e) All of these can be components of cerebrosides - ANSWER c) Phosphate
Unsaturated fatty acids usually have cis double bonds.
a) True
b) False - ANSWER a) True
The products of saponification of a triglyceride include all of these, except:
a) Long chain fatty alcohols.
,b) The salt of the fatty acids.
c) Soaps.
d) Glycerol.
e) All of these are products of saponification. - ANSWER a) Long chain fatty
alcohols.
Phosphatidic acid is made from all the following, except:
a) Choline
b) Fatty acids
c) Glycerol
d) Phosphate
e) All of these are components of phosphatidic acid. - ANSWER a) Choline
Glycolipids are characterized by containing the following non-lipid
component:
a) Sugars
b) Glycerol
c) Phosphate
d) Sphingosine
e) More than one of these characterize glycolipids - ANSWER a) Sugars
Phospholipids are particularly important in these structures:
a) Membranes
,b) Lipoproteins
c) The brain and nervous system
d) Membranes, the brain and the nervous system
e) All of these are correct. - ANSWER e) All of these are correct.
Glycolipids are particularly important in these structures:
a) Membranes
b) Lipoproteins
c) The brain and nervous system
d) Membranes, the brain and the nervous system
e) All of these are correct - ANSWER d) Membranes, the brain and the
nervous system
Sphingomyelin is composed of all of the following, except:
a) Sphingosine
b) Fatty acid
c) Phosphate
d) Sugar
e) All of these can be components of sphingomyelin - ANSWER d) Sugar
Which of the following four fatty acids has the highest melting point?
[1] CH3CH2CH2CH2CH2COOH
, [2] CH3CH2CH2CH2CH2CH2CH2CH2CH2COOH
[3] CH3CH2CH2CH2CH2CH2CH2COOH
[4] CH3CH=CHCH2CH2COOH
a) 1
b) 2
c) 3
d) 4 - ANSWER b) 2
Fatty acids with trans double bonds may be particularly unhealthy because
they increase the
ratio of LDLs to HDLs.
a) True
b) False - ANSWER a) True
The HDL class of lipoprotein is generally believed to be preventative of heart
disease.
a) True
b) False - ANSWER a) True
Which of the following four fatty acids has the lowest melting point?
ANSWERS
Lipids include the following classes of compounds, except:
a) Fatty acids
b) Steroids
c) Sphingolipids
d) Triacylglycerols
e) All of these are lipids. - ANSWER e) All of these are lipids.
Cerebroside is composed of all of the following, except:
a) Sphingosine
b) Fatty acid
c) Phosphate
d) Sugar
e) All of these can be components of cerebrosides - ANSWER c) Phosphate
Unsaturated fatty acids usually have cis double bonds.
a) True
b) False - ANSWER a) True
The products of saponification of a triglyceride include all of these, except:
a) Long chain fatty alcohols.
,b) The salt of the fatty acids.
c) Soaps.
d) Glycerol.
e) All of these are products of saponification. - ANSWER a) Long chain fatty
alcohols.
Phosphatidic acid is made from all the following, except:
a) Choline
b) Fatty acids
c) Glycerol
d) Phosphate
e) All of these are components of phosphatidic acid. - ANSWER a) Choline
Glycolipids are characterized by containing the following non-lipid
component:
a) Sugars
b) Glycerol
c) Phosphate
d) Sphingosine
e) More than one of these characterize glycolipids - ANSWER a) Sugars
Phospholipids are particularly important in these structures:
a) Membranes
,b) Lipoproteins
c) The brain and nervous system
d) Membranes, the brain and the nervous system
e) All of these are correct. - ANSWER e) All of these are correct.
Glycolipids are particularly important in these structures:
a) Membranes
b) Lipoproteins
c) The brain and nervous system
d) Membranes, the brain and the nervous system
e) All of these are correct - ANSWER d) Membranes, the brain and the
nervous system
Sphingomyelin is composed of all of the following, except:
a) Sphingosine
b) Fatty acid
c) Phosphate
d) Sugar
e) All of these can be components of sphingomyelin - ANSWER d) Sugar
Which of the following four fatty acids has the highest melting point?
[1] CH3CH2CH2CH2CH2COOH
, [2] CH3CH2CH2CH2CH2CH2CH2CH2CH2COOH
[3] CH3CH2CH2CH2CH2CH2CH2COOH
[4] CH3CH=CHCH2CH2COOH
a) 1
b) 2
c) 3
d) 4 - ANSWER b) 2
Fatty acids with trans double bonds may be particularly unhealthy because
they increase the
ratio of LDLs to HDLs.
a) True
b) False - ANSWER a) True
The HDL class of lipoprotein is generally believed to be preventative of heart
disease.
a) True
b) False - ANSWER a) True
Which of the following four fatty acids has the lowest melting point?
