Q9: Match List -l with List - II.
(2021)
List-I List-li
(a) Protein I. C-C double bonds
(b) Unsaturated fatty acid I. Phosphodiester bonds
(C) Nucleic acid IlII. Glycosidic bonds
(d)Polysaccharides IV. Peptide bonds
Choose the correct answer from the options
given below.
(a) (b) (c) (d)
(a) (i) (i) (iv) (it)
(b) (iv) (iii) (i) (it)
(c) (iv) (1) (ii) (i)
(d) (i) (iv) (ii) (ii)
Ans. (c)
Solution.
"Fatty acids could be saturated (without
double bond) or unsaturated (with one or
more C=Cdouble bonds).
Q
24: Which of the following are not
polymeric? (2017)
(a) Proteins
(b) Polysaccharides
(c) Lipids
(d) Nucleic acids
Ans. (c)
Solution.
Lipids are fatty acids esters of alcohols and
related substances. Polysaccharides are
polymersof monosaccharides. Proteins are
polymers of amino acids and nucleic acids are
polymer of nucleotides.
Q 25: A non-proteinaceous enzyme is
(2016)
(a) Lysozyme
(b) Ribozyme
(c) Ligase
(d) Deoxyribonuclease
Ans. (b)
Q 16: Which one of the following is the most
abundant protein in the animals? (2020)
(a) Lectin
(b) Insulin
(c) Haemoglobin
(d) Collagen
Ans. (d)
Solution.
Collagen is the most abundant protein in animal
world and Ribulose bisphosphate Carboxylase
Oxygenase (RUBISCO) is the most abundant
protein in the whole of the biosphere.
Q8: Which of the following are not
secondary metabolites in plants? (2021)
(a) Vinblastin, curcumin
(b) Rubber, gums
(c) Morphine,codeine
(d) Amino acids, glucose
Ans. (d)
Q7: Match List-I with List-ll (2022)
List-I List-II
(Biological Molecules) (Biological functions)
a) Glycogen Hormone
(b) Globulin (i) Biocatalyst
(c) |Steroids (Gi)Antibody
Thrombin (iv) Storage product
Choose the correct answer from the options
given below:
(A) (a)- (iv), (b) -(0), (c) -(0), (d) -(ii)
(B) (a) -(ii), (b) - (iv), (c)- (ii), (ii) - ()
(C) (a) - (iv), (b) - (ii), (c)- (i), (d) - ()
(D) (a) -(ii), (b)- (i), (c)- (iv),(d) -()
Ans. (c)
Solution.
" Glycogen is a polymer of glucose. This is a
storage polysaccharide.
" Globulin is aprotein associated with the
immunology. Antibodies are gamma
globulins.
" Many hormones are steroid in nature, like
testosterone.
" Thrombin isa protein enzyme and is called
as biocatalyst.
Q5: A dehydration reaction links two glucose
molecules to produce maltose. If the formula
for glucose is CoH1206then what is the
formula for maltose? (2022)
(a)C12H24012
(b)C12H22011
(c)C12H24011
(d)C12H20010
Ans. (b)
Q4: Read the following statements on lipids
and find out correct set of statements: (2022)
(A) Lecithin found in the plasma membrane isa
glycolipid
(B) Saturated fatty acids possess one or more c
=c bonds
(C) Gingely oil has lower melting point, hence
remains as oil in winter
(D) Lipids are generally insoluble in water but
soluble in some organic solvents
(E)When fatty acid is esterified with glycerol,
monoglycerides are formed
Choose the correct answer from the options
given below:
(a) (A), (D) and (E) only
(b) (C), (D) and (E) only
(c) (A), (B) and (D) only
(d) (A), (B)and (C) only
Ans. (b)
Q 29: Which one of the following statements
is wrong? (2016)
(a) Uracil is a pyrimidine.
(b) Glycine is asulphur containing amino
acid.
(c)Sucrose is a disaccharide.
(d) Cellulose is a polysaccharide.
Ans. (b)
Q 28: A typicalfat molecule is made up of
(2016)
(a)One glycerol and one fatty acid molecule
(b) Three glycerol and three fatty acid
molecules
(c) Three glycerol molecules and one fatty
acid molecule
(d)One glycerol and three fatty acid
molecules.
Ans. (d)
Solution.
Neutral or true fats are triglycerides which are
formed by esterification of three molecules of
fatty acids with one molecule of trihydric
alcohol, glycerol (glycerine or trihydroxy
propane).
Q
20: "Ramachandran plot" is used to
confirm the structure of (2019)
(a) RNA
(b) proteins
(c) triacyiglycerides
(d) DNA
Ans. (b)
Q17: Which of the following glucose
transporters is insulin-dependent? (2019)
(a) GLUTIV
(b) GLUTI
(c) GLUTII
(d) GLUT II
Ans. (a)
Q 13:Floridean starch has structure similar
to: (2020)
(a) Mannitoland algin
(b) Laminarin and cellulose
(c) Starch and cellulose
(d) Amylopectin and glycogen
Ans. (d)
Q 12: ldentify the basic amino acid from the
following (2020)
(a) Lysine
(b) Valine
(c) Tyrosine
(d)Glutamic acid
Ans. (a)
Q
11: Following are the statements with
reference to 'lipids. (2021)
(a) Lipids having only single bonds are called
unsaturated fatty acids.
(b) Lecithinis a phospholipid.
(c) Trihydroxy propane is glycerol.
(d) Palmitic acid has 20 carbon atoms
including carboxyl carbon.
(e) Arachidonic acid has 16 carbon atoms.
Choose the correct answer from the options
given below.
(a) (b) and (c) only
(b) (b) and (e) only
(c) (a) and (b) only
(d) (c) and(d) only
Ans. (a)
Q 10: ldentify the incorrect pair. (2021)
(a) Lectins -Concanavalin A
(b) Drugs - Ricin
(c) Alkaloids - Codeine
(d) Toxin - Abrin
Ans. (b)
Q1:Cellulose does not form blue colour with
lodine because (2023)
(a) It is a disaccharide
(b) It is a helical molecule
(c) It does not contain complex helices and
hence cannot hold iodine molecules
(d) It breaks down when iodine reacts with it
Ans. (c)
Q 18: Concanavalin A is (2019)
(a) A pigment
(b) Analkaloid
(c) An essential oil
(d) A lectin
Ans. (d)
