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Free download in PDF Lipids Short Questions & Answers for competitive exams. These Lipids Objective Questions with Answers are important for Board Exams as well as competitive exams like AIIMS, NEET and other Pre-Medical Exams. These short solved questions or quizzes are provided by Gkseries.
41
_____ Based on its structural similarity to other lipids, this lipid most likely functions as
[A]
A Membrane Component
[B]
A Sex Hormone
[C]
A Vitamin Required For Vision
[D]
An Energy Storage Molecule
Answer: An Energy Storage Molecule
42
_____ Which type of membrane lipid contains an acidic oligosaccharide?
[A]
Phosphatidylinositol
[B]
Cerebroside
[C]
Ganglioside
[D]
Globoside
43
_____ What is the proper designation for the unsaturated fatty acids in this lipid?
[A]
18:2 (Δ9,12)
[B]
18:2 (Δ6,9)
[C]
17:2 (Δ9,12)
[D]
17:2 (Δ5,8)
44
_____ Which is a property of eicosanoids?
[A]
All eicosanoids contain three conjugated double bonds
[B]
All eicosanoids contain arachidonic acid and sphingosine
[C]
Prostaglandins and leukotrienes both contain a ring structure
[D]
Thromboxanes and prostaglandins both contain a carboxyl group
Answer: Thromboxanes and prostaglandins both contain a carboxyl group
45
Which is a characteristic of sphingolipids?
[A]
They all contain a fatty acid joined to glycerol
[B]
They all contain a long-chain alcohol joined to isoprene
[C]
They all contain ceramide joined to a polar group
[D]
They all contain a carbohydrate joined to a phosphate group
Answer: They all contain ceramide joined to a polar group
(26)
_____ Which of the following is a characteristic of both waxes and terpenes?
[A]
Both can contain an amino alcohol
[B]
Both can contain a fatty acid
[C]
Both can be non-saponifiable
[D]
Both can contain oxygen
Answer: Both can contain oxygen
47
_____ Which of the following structures is a 20:2 (Δ4,9) fatty acid?
[A]
CH3(CH2)9CH = CH(CH2)3CH = CH(CH2)2COOH
[B]
CH3(CH2)2CH = CH(CH2)3CH = CH(CH2)9COOH
[C]
CH3(CH2)10CH = CH(CH2)3CH = CHCH2COOH
[D]
CH3CH2CH = CH(CH2)3CH = CH(CH2)10COOH
Answer: CH3(CH2)9CH = CH(CH2)3CH = CH(CH2)2COOH
48
Which of the following molecules is a typical fatty acid?
[A]
A molecule that has an even number of carbon atoms in a branched chain
[B]
An amphipathic dicarboxylic acid with unconjugated double bonds
[C]
A molecule that has one cis double bond in a linear carbon chain
[D]
A polar hydrocarbon with that reacts with NaOH to form a salt
Answer: A molecule that has one cis double bond in a linear carbon chain
49
Which of the following is not a phospholipase?
50
The dye used in TLC for detecting separated lipids by spraying the plate is
[A]
Mordant
[B]
Alizarin
[C]
Rhodamine
[D]
Fuchsin
51
A mixture of fatty acyl methyl esters are separated based on
[A]
Charge
[B]
Chain length and degree of saturation
[C]
Molecular weight
[D]
Ionic size
Answer: Chain length and degree of saturation
52
Phosphatidylinositol, phosphatidylglycerol and phosphatidylserine are easily separated by
[A]
Absorption chromatography
[B]
TLC
[C]
HPLC
[D]
Gas-liquid chromatography
53
Which would move faster in thin layer chromatography?
[A]
Beeswax
[B]
Phosphatidylinositol
[C]
Cholesterol
[D]
Steroid
54
Which of the following is false about lipids?
[A]
They are either strongly hydrophobic or amphipathic
[B]
They are more soluble in water
[C]
Extraction of lipids from tissues require organic solvents
[D]
They are insoluble in water
Answer: They are more soluble in water
55
Dietary fats are transported as
[A]
Chylomicrons
[B]
Liposomes
[C]
Lipid globules
[D]
Oil droplets
56
Greater the number of carbon atom in chain of fatty acid __________
[A]
The boiling point will be higher
[B]
The boiling point will be lesser
[C]
The melting point will be higher
[D]
The melting point will be lower
Answer: The melting point will be higher
57
Carnauba wax is an example for __________
[A]
Liquid wax
[B]
Soft wax
[C]
Hard wax
[D]
Archaebacterial wax
58
Naturally occurring fats are ______
[A]
L types
[B]
D types
[C]
An equi-molar mixture of L and D types
[D]
Symmetric
59
Which of the following is an example for derived lipids?
[A]
Steroids
[B]
Terpenes
[C]
Carotenoids
[D]
All of these
60
Polenske value of fatty acid indicates __________.
[A]
How much unsaturation is there in the fatty acid
[B]
Level of saturation in the fatty acid
[C]
Indication of branching of fatty acid in the fat
[D]
How much volatile fatty acid can be extracted through saponification
Answer: How much volatile fatty acid can be extracted through saponification
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