MCQ on Classification of Lipids
1. Which of the following is a non-glyceride lipid?
a) Phospholipids
b) Fats
c) Oils
d) Waxes
This is a short 8 minute summary on Classification of Lipids
2. Which of the following is
true regarding saturated fatty acids?
a) double
bonds are absent
b) loosely
packed
c) low
melting point
d) liquid
at room temperatures
3. Which of the following is highly recommended
for consumption as part of a healthy diet?
a) saturated
fatty acid
b) cis-unsaturated
fatty acid
c) Trans unsaturated
fatty acid
d) cis
saturated fatty acids
4. Low water solubility of fatty acids is due
to?
a) the long fatty acid chains
b) less
number of double bonds
c) both a
and b
d) more
number of double bonds
5. A triglyceride is made up of
a) 3 fatty acids joined to 1
glycerol by ester linkage
b) 1 fatty acid joined to 3
glycerol by ester linkage
c) 3 fatty acids joined to 1
glycerol by ether linkage
d) 2 fatty acids and 1 phophate joined
to 1 glycerol by ester linkage
6. A phospholipid consists of a
a) polar
phosphate hydrophilic tail group and hydrophobic fatty acid head
b) non-polar
phosphate containing head group and polar fatty acid tail
c) polar
phosphate containing hydrophilic head group and hydrophobic fatty acid tail
d) non-polar
phosphate containing head group and non-polar fatty acid tail
7. A phospholipid consists of
a) 3 Fatty acid+ 1 Glycerol +
phosphate group
b) 2 Fatty acid+ 1 Glycerol +
phosphate group + attached alcohol
c) 1 Fatty acid+ 3 Glycerol +
phosphate group
d) 2 Fatty acid+ 1 Glycerol +
phosphate group
8. Which of the following statement is true
regarding waxes?
a) made up of long fatty acid
chains esterified to long-chain alcohols
b) hydrophobic in nature
c) Present
on leaf surface and bird feathers
d) all of
the above
9. Sphingolipids are similar to
phospholipids, except glycerol backbone is replaced by
a) Choline
b) sphingosine
c) fatty
acid
d) phosphate
10. Steroids consists of
a) 17 C atoms in four fused rings: 3 cyclohexane rings and 1 cyclopentane
ring
b) 16 C atoms in four fused rings: 3 cyclohexane rings and one cyclopentane
ring
c) 17 C atoms in four unfused rings: 3 cyclohexane rings and 1 cyclopentane
ring
d) 17 C atoms in four fused rings: 1 cyclohexane rings and 3 cyclopentane
ring
11. The polar head group of sphingomyelin
is
a) phosphoserine
b) phosphocholine
c) phosphoethanolamine
d) phosphate
12. Glycolipids are
a) Sugar
lipid complexes joined by glycosidic bond
b) protein
lipid complexes joined by peptide bond
c) Sugar protein
complexes joined by glycosidic bond
d) Sugar
lipid complexes joined by ester bond
13. Which of the following is an example of
lipoproteins?
a) LDL
b) VLDL
c) Chylomicron
d) all of
the above
Try More
Answers:
1. d) Waxes
2. a) double bonds are absent
3. b) cis-unsaturated fatty acid
4. c) both a and b
5. a) 3 fatty acids joined to 1 glycerol by ester linkage
6. c) polar phosphate containing hydrophilic head group
and hydrophobic fatty acid tail
7. b) 2
Fatty acid+ 1 Glycerol + phosphate group + attached alcohol
8. d) all of the above
9. b) sphingosine
10. a) 17 C atoms in four fused rings: 3 cyclohexane
rings and 1 cyclopentane ring
11. b) phosphocholine
12. a) Sugar
lipid complexes joined by glycosidic bond
13. d) all of the
above
