Lipid MCQs : This section focuses on the "Lipid". These Multiple Choice Questions (MCQs) should be practiced to improve the Lipid skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
Name the reagent which is used in Saponification?
A. Ammonia
B. Acetic acid
C. NaOH/KOH
D. Butanone
Question 2
How many classes of steroid hormones are there?
A. 3
B. 2
C. 4
D. 5
Question 3
What is the major protein constituent of high-density lipoprotein (HDL)?
A. Apolipoprotein A-l
B. Apolipoprotein C-l
C. Apolipoprotein E
D. None of these
Question 4
Which of the following phospholipid is considered as a major constituent of nervous tissue?
A. Glycerophospholipid
B. Plasmalogen
C. Inositol
D. Sphingomyelin
Question 5
Triacylglycerols are
A. soluble in water
B. insoluble in water
C. soluble in water at elevated temperature
D. partially soluble in water
Question 6
Fatty acids are amphipathic by nature.
A. True
B. False
Question 7
Fatty acids break down of eukaryotes occurs in
A. mitochondrial matrix
B. cell membrane
C. cytosol
D. endoplasmic reticulum
Question 8
Chylomicrons are synthesized in
A. blood
B. liver
C. intestine
D. pancreas
Question 9
Arachidonate has 20 carbon atoms with
A. 3 double bonds
B. 2 double bonds
C. 4 double bonds
D. 8 double bonds
Question 10
Micelles of fatty acids in water are organized such that the __________ faces the solvent and the __________ are directed toward the interior
A. carboxylic acid groups, hydrocarbon chains heads
B. hydrophilic heads, hydrophobic tails
C. hydrocarbon chains, carboxylic acid groups
D. both (a) and (b)
Question 11
Synthesis of fatty acid takes place when
A. fatty acid are plentiful
B. carbohydrate is plentiful
C. carbohydrate and energy are plentiful
D. none of these
Question 12
Cholestrol is the precursor of
A. steroid hormones
B. vitamin A
C. bile salts
D. both (a) and (c)
Question 13
How many ATPs are formed during complete oxidation of palmitate?
A. 35
B. 96
C. 129
D. 131
Question 14
Which of the following is not a component of a phospholipid?
A. Phosphate
B. Alcohol
C. Glycerol
D. Protein
Question 15
Animals cannot convert fatty acids into glucose because
A. acetyl CoA can not be converted to pyruvate
B. absence of malate synthase
C. absence of dehydrogenase
D. absence of a-ketoglutarate dehydrogenase
Question 16
Find the INCORRECT statement about the biological functions of lipids.
A. Storage form of metabolic fuel
B. Have a protective function in bacteria, plant, and insects
C. The structural component of membranes
D. Exhibit increased catalytic activity
Question 17
Identify the lowest density lipoprotein among the following?
A. HDL
B. LDL
C. VLDL
D. Chylomicrons
Question 18
Which of the following sterol is present in the cell membrane of fungi?
A. Ergosterol
B. Stigmasterol
C. Sitosterol
D. Campesterol
Question 19
Fatty acid synthesis takes place in
A. mitochondria
B. cell membrane
C. cytosol
D. endoplasmic reticulum
Question 20
Which of the following is called milk ejection hormone?
A. Prolactin
B. Vasopressin
C. Oxytocin
D. All of these
Question 21
How many types of lipoproteins are there?
A. 2
B. 6
C. 8
D. 5
Question 22
Atherosclerosis can cause blood
A. thinning
B. clotting
C. thickening
D. none of these
Question 23
Which of the following form of lipids are also referred as neutral lipids?
A. Triacylglycerol
B. Steroid
C. Phospholipids
D. Wax
Question 24
Cholesterolemia means
A. lack of functional LDL receptors
B. lack of functional HDL receptor
C. high sensitivity to fatty food intake
D. none of the above
Question 25
Which of the following is an example of unsaturated fatty acids?
A. Lauric or Dodecanoic
B. Linoleic or octadecatrienoic
C. Palmitic or hexadecanoic
D. Myristic or tetradecanoic
Question 26
The number of water molecules consumed by the formation of phosphatidyl serine are
A. 0
B. 1
C. 2
D. 4
Question 27
In eukaryotes fatty acid breakdown occurs in
A. mitochondrial matrix
B. cytosol
C. cell membrane
D. endoplasmic reticulum
Question 28
What is the solubility of lipids in water?
A. Soluble
B. Partially soluble
C. Insoluble
D. Partially insoluble
Question 29
The key enzyme in the regulation of fatty acid synthesis is
A. acetyl CoA carboxylase
B. AMP activated proteinkinase
C. protein phosphatase
D. none of these
Question 30
VLDLs are synthesized in
A. blood
B. liver
C. intestine
D. pancreas
Question 31
Palmitate has 16 carbon atoms with
A. 2 double bonds
B. 3 double bonds
C. One double bond
D. None of these
Question 32
In the intestine, the dietary fats are hydrolysed by
A. triacylglycerol lipase
B. adenylate cyclase
C. pancreatic lipase
D. protein kinase
Question 33
Phospholipid contains
A. hydrophilic heads and hydrophobic tails
B. long water-soluble carbon chains
C. positively charged functional groups
D. both (b) and (c)
Question 34
The lowest energy value lipid for human nutrition is
A. olive oil
B. olestra
C. margarine
D. cardiolipih
Question 35
HDLs are synthesized in
A. blood
B. liver
C. intestine
D. pancreas
Question 36
Name the two essential fatty acids?
A. Linoleate and linolenate
B. Oleic and linoleic
C. Lauric and myristic
D. Arachidonic and oleic