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the choline obtained from lecithins is considered:
 
Derived Lipid
 
Simple Lipid
 
Compound Lipid
 
Not classified as lipid
Upon hydrolysis, sphingomyelin yields all of the following except:
 
Glycerol
 
Fatty acids
 
Phosphoric acid
 
Choline
Sphingomyelin differs from phosphoglycerides because it:
 
Contains sphingosine instead of glycerol
 
Contains glycerol instead of sphingosine
 
Lacks fatty acids
 
Contains sugar groups
Cephalins are phospholipids that contain either:
 
Ethanolamine or serine
 
Choline or sphingosine
 
Glycerol or cholesterol
 
Tyrosine or tryptophan
In lecithin, the nitrogen compound attached to phosphatidic acid is:
 
Choline
 
Serine
 
Ethanolamine
 
Sphingosine
Lecithin differs from cephalin mainly in:
 
Type of nitrogen base
 
Type of phosphate group
 
Type of fatty acid
 
Presence of sphingosine
Which of the following is not a nitrogen base found in phospholipids?
 
Glycerol
 
Choline
 
Ethanolamine
 
Serine
The most common type of phospholipid in cell membranes is:
 
Phosphatidylcholine (Lecithin)
 
Sphingomyelin
 
Cholesterol
 
Triglyceride
Phospholipids act as good emulsification agents because they are:
 
Amphipathic (have both polar and nonpolar parts)
 
Fully hydrophobic
 
Fully hydrophilic
 
Neutral molecules
Which of the following best defines phospholipids?
 
Lipids containing phosphorus
 
Lipids containing nitrogen
 
Lipids containing sulfur
 
Lipids without fatty acids
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