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Biomolecules

194 Questions Start Allen Test
All Exams Allen
Q76 Allen 8. PYQ MCQ
One of the major components of cell wall of most fungi is :-
A.
Chitin
B.
Peptidoglycan
C.
Cellulose
D.
Hemicellulose
Q77 Allen 8. PYQ MCQ
A typical fat molecule is made up of :-
A.
Three glycerol molecules and one fatty acid molecule
B.
One glycerol and three fatty acid molecules
C.
One glycerol and one fatty acid molecule
D.
Three glycerol and three fatty acid molecules
Q78 Allen 8. PYQ MCQ
Which of the following is the least likely to be involved in stabilizing the three– dimensional folding of most proteins?
A.
Hydrophobic interaction
B.
Ester bonds
C.
Hydrogen bonds
D.
Electrostatic interaction
Q79 Allen 8. PYQ MCQ
A non-proteinaceous enzyme is :-
A.
Ligase
B.
Deoxyribonuclease
C.
Lysozyme
D.
Ribozyme
Q80 Allen 8. PYQ MCQ
Which of the following describes the given graph correctly?
A.
Endothermic reaction with energy A in absence of enzyme and B in presence of enzyme
B.
Exothermic reaction with energy A in absence of enzyme and B in presence of enzyme
C.
Endothermic reaction with energy A in presence of enzyme and B in absence of enzyme
D.
Exothermic reaction with energy A in presence of enzyme and B in absence of enzyme.
Q81 Allen 8. PYQ MCQ
Which of the following are not polymeric ?
A.
Proteins
B.
Polysaccharides
C.
Lipids
D.
Nucleic acids
Q82 Allen 8. PYQ MCQ
Which one of the following statements is correct, with reference to enzymes ?
A.
Holoenzyme = Apoenzyme + Coenzyme
B.
Coenzyme = Apoenzyme + Holoenzyme
C.
Holoenzyme = Coenzyme + Co-factor
D.
Apoenzyme = Holoenzyme + Coenzyme
Q83 Allen 8. PYQ MCQ
The two functional groups characteristic of sugars are
A.
hydroxyl and methyl
B.
carbonyl and methyl
C.
carbonyl and phosphate
D.
carbonyl and hydroxyl
Q84 Allen 8. PYQ MCQ
Which of the following is an amino acid derived hormone ?
A.
Epinephrine
B.
Ecdysone
C.
Estradiol
D.
Estriol
Q85 Allen 8. PYQ MCQ
Which of the following glucose transporters is insulin-dependent ?
A.
GLUT I
B.
GLUT II
C.
GLUT III
D.
GLUT IV
Q86 Allen 8. PYQ MCQ
Concanavalin A is :
A.
an alkaloid
B.
an essential oil
C.
a lectin
D.
a pigment
Q87 Allen 8. PYQ MCQ
Consider the following statements : (A) Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group. (B) A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme. Select the correct option.
A.
Both (A) and (B) are true.
B.
(A) is true and (B) is false.
C.
Both (A) and (B) are false.
D.
(A) is false and (B) is true.
Q88 Allen 8. PYQ MCQ
Which of the following organic compounds is the main constituent of Lecithin ?
A.
Arachidonic acid
B.
Phospholipid
C.
Cholesterol
D.
Phosphoprotein
Q89 Allen 8. PYQ MCQ
"Ramachandran plot" is used to confirm the structure of :-
A.
RNA
B.
Proteins
C.
Triacylglycerides
D.
DNA
Q90 Allen 8. PYQ MCQ
Prosthetic groups differ from co-enzymes in that :-
A.
they require metal ions for their activity.
B.
they (prosthetic groups) are tightly bound to apoenzymes.
C.
their association with apoenzymes is transient.
D.
they can serve as co-factors in a number of enzyme-catalyzed reactions.
Q91 Allen 8. PYQ Match the Columns
Match the following Column-I with Column-II:
Column-IColumn-II
(A)Inhibitor of catalytic
(B)Possess peptide bonds
(C)Cell wall material in
(D)Secondary metabolite
(I)Ricin activity
(II)Malonate
(III)Chitin fungi
(IV)Collagen
A.
A-II, B-III, C-I, D-IV
B.
A-II, B-IV, C-III, D-I
C.
A-III, B-I, C-IV, D-II
D.
A-III, B-IV, C-I, D-II
Q92 Allen 8. PYQ MCQ
Identify the basic amino acid from the following.
A.
Valine
B.
Tyrosine
C.
Glutamic Acid
D.
Lysine
Q93 Allen 8. PYQ MCQ
Which of the following is the most abundant protein in the animals ?
A.
Insulin
B.
Haemoglobin
C.
Collagen
D.
Lectin
Q94 Allen 8. PYQ MCQ
Identify the substances having glycosidic bond and peptide bond, respectively in their structure :
A.
Inulin, insulin
B.
Chitin, Cholesterol
C.
Glycerol, trypsin
D.
Cellulose, lecithin
Q95 Allen 8. PYQ MCQ
Identify the statement which is incorrect.
A.
Sulphur is an integral part of cysteine.
B.
Glycine is an example of lipids.
C.
Lecithin contains phosphorus atom in its structure.
D.
Tyrosine possesses aromatic ring in its structure.
Q96 Allen 8. PYQ MCQ
Which of the following are not secondary metabolites in plants ?
A.
Morphine, codeine
B.
Amino acids, glucose
C.
Vinblastin, curcumin
D.
Rubber, gums
Q97 Allen 8. PYQ Match the Columns
Match Column - I with Column - II.
Column-IColumn-II
(A)Protein
(B)Unsaturated fatty acid
(C)Nucleic acid
(D)Polysaccharide
(I)C = C double bonds
(II)Phosphodiester bonds
(III)Glycosidic bonds
(IV)Peptide bonds
A.
A-IV, B-I, C-II, D-III
B.
A-I, B-IV, C-III, D-II
C.
A-II, B-I, C-IV, D-III
D.
A-IV, B-III, C-I, D-II
Q98 Allen 8. PYQ MCQ
Identify the incorrect pair.
A.
Alkaloids – Codeine
B.
Toxin – Abrin
C.
Lectins – Concanavalin A
D.
Drugs – Ricin
Q99 Allen 8. PYQ MCQ
Following are the statements with reference to 'lipids'.
(a) Lipids having only single bonds are called unsaturated fatty acids. (b) Lecithin is 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.
(a) and (b) only
B.
(c) and (d) only
C.
(b) and (c) only
D.
(b) and (e) only
Q100 Allen 8. PYQ MCQ
Exoskeleton of arthropods is composed of
A.
Cellulose
B.
Chitin
C.
Glucosamine
D.
Cutin