Biochemistry – Lipids Exam Questions and Answers With complete
solution–Expert Verified
Triglycerides belong to which general class of organic molecules?: esters
Glycolipids are similar in structure to sphingomyelins, except that the phos-
phate group has been replaced by a(an): carbohydrate
Which molecule is a fatty acid?: CH3(CH2)7CH=CH(CH2)7COOH
Fats and oils can be referred to by the general term because .-
: triacylglycerols; they are formed by reaction of 1,2,3-propanetriol with three fatty acids
The product of an esterification reaction between which of the following mol-
1/2
, ecules would be an oil?I. CH3 (CH2)14COOHII. CH3
(CH2)7CHCH(CH2)7COOHIII.HOCH2CH2OHIV. HOCH2CH(OH)CH2OH: II and IV
Phospholipids differ from fats and oils by having: one of the fatty acid ester linkages
replaced by a phosphate ester linkage.
Which statement about eicosanoids is not correct?
-Linolenic acid is a precursor to arachidonic acid.
-The parent molecule, arachidonic acid, contains 20 carbon atoms.
-All of the molecules in this category are unsaturated.
-Eicosanoids function as "local hormones," acting as short-term chemical
2/2
solution–Expert Verified
Triglycerides belong to which general class of organic molecules?: esters
Glycolipids are similar in structure to sphingomyelins, except that the phos-
phate group has been replaced by a(an): carbohydrate
Which molecule is a fatty acid?: CH3(CH2)7CH=CH(CH2)7COOH
Fats and oils can be referred to by the general term because .-
: triacylglycerols; they are formed by reaction of 1,2,3-propanetriol with three fatty acids
The product of an esterification reaction between which of the following mol-
1/2
, ecules would be an oil?I. CH3 (CH2)14COOHII. CH3
(CH2)7CHCH(CH2)7COOHIII.HOCH2CH2OHIV. HOCH2CH(OH)CH2OH: II and IV
Phospholipids differ from fats and oils by having: one of the fatty acid ester linkages
replaced by a phosphate ester linkage.
Which statement about eicosanoids is not correct?
-Linolenic acid is a precursor to arachidonic acid.
-The parent molecule, arachidonic acid, contains 20 carbon atoms.
-All of the molecules in this category are unsaturated.
-Eicosanoids function as "local hormones," acting as short-term chemical
2/2
