KUET 2021 Question Paper M.Sc. Biochemistry

FOR KUET EXAM PREPARATION

KUET 2021
Question Paper · M.Sc.
Biochemistry
EXAM YEAR TYPE SUBJECT

KUET 2021 Question Paper M.Sc. Biochemistry

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Sr. No. .............................

ENTRANCE TEST-2021
SCHOOL OF BIOLOGICAL SCIENCES

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BIOCHEMISTRY
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Question Booklet Series

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Total Questions : 60
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Time Allowed : 70 Minutes Roll No. :

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g l a Instructions for Candidates :
a
a Entrance Test Roll Number in the space provided at the top of this page of Question Booklet
1. Write your
and fill up the necessary information in the spaces provided on the OMR Answer Sheet.
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making entries in the Original Copy, candidate should ensure that the two copies are aligned properly
so that the entries made in the Original Copy against each item are exactly copied in the Candidate’s
Copy.
3. All entries in the OMR Answer Sheet, including answers to questions, are to be recorded in the Original

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Copy only.

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4. Choose the correct / most appropriate response for each question among the options A, B, C and D and

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darken the circle of the appropriate response completely. The incomplete darkened circle is not correctly

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read by the OMR Scanner and no complaint to this effect shall be entertained.
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8. Only those candidates who would obtain positive score in Entrance Test Examination shall be eligible
for admission.
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9. Do not make any stray mark on the OMR sheet.

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10. Calculators and mobiles shall not be permitted inside the examination hall.
m booklet.
em12. OMR Answer Sheet must be handled carefully and it should not be folded l s
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11. Rough work, if any, should be done on the blank sheets provided with the question

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a will not be evaluated.
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herself.
14. At the end of the examination, hand over the OMR Answer Sheet to the invigilator who will first tear off
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1. N-glycosidic bond is between: 5. The largest unit of energy is:
(A) Nitrogenous base and ribose sugar of RNA (A) electron volt
(B) Nitrogenous base and de-oxy ribose sugar (B) Joule
of DNA
(C) calorie
(C) Both (A) and (B) are correct
(D) Neither (A) nor (B) is correct (D) erg
2. Among the following pairs, the identical bond 6. Nernst formulated one among the following laws:
order is in: (A) First law of thermodynamics
(A) N2, O2+2 (B) Second law of thermodynamics
(B) N2, O-2
(C) Third law of thermodynamics
(C) N-2, O2
(D) O2+, N2 (D) None of the above
3. AB and CD are two diatomic molecules with 7. At pH = 10, the potential of a hydrogen electrode
dipole moments 10.41D and 10.27 D, and is:
their bond distances are 2.82 and 2.67Ao, (A) 0.59 V
respectively, indicating that: (B) -0.59 V
(A) AB has lesser ionic bond character than
(C) 0.059V
CD
(B) AB has more ionic bond character than (D) -0.059V
CD 8. Buffering capacity of a buffer depends upon:
(C) 100% ionic in both the molecules (A) Concentration of the buffer constituents
(D) Bonding is nearly covalent in both the
(B) pK of a buffer
molecules
4. Taking a close view of the following structures (C) Both (A) & (B)
of compounds, indicate which is not chiral: (D) Neither (A) nor (B)
9. The interior compartment of the thylakoid
membrane becomes _____, during photosynthetic
electron transport.
(A) Basic as compared to reaction centre
(B) More acidic than stroma
(C) Enriched in ATP
(D) The site for glucose formation
10. Glycolate substrate is associated with:
(A) Photorespiration
(A) 1 (B) Krebs cycle
(B) 2 (C) C3 cycle substrate
(C) 3 (D) Glycolysis
(D) 4
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11. The site for conversion of pyruvate to PEP by 16. The secondary pollutant among the following
use of ATP in C4 plants lies in: is:
(A) Mesophyll cells of chloroplasts (A) PAN
(B) Mesophyll cells of cytoplasm (B) N2O
(C) Bundle sheath cells of cytoplasm (C) SO2
(D) Bundle sheath cells of chloroplasts (D) CO2
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12. Tick odd one out with regard to transpiration:

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17. The outcome of most host-parasite relationships

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(A) Water comes out as water vapors depends on:

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(B) It occurs in all plants
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(A) The host’s defenses or degree of resistance

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(D) It occursl by stomata, lenticels, and cuticle
(C) Involvement of Root pressure (B) The number of microorganisms infecting
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13. As per theaInternational Union of Conservation
the host
(C) The virulence of the organism
of Nature and Natural Resources (IUCN),
(D) All of the above
endangered species are defined as:
(A) The species which are out of the list of 18. Considering that the doubling time of a bacterium
conservation measure is 20 min, starting with one bacterium initially,
the number of bacteria produced in 2 hours
(B) The species which no longer exists today will be:

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(C) The species which are in danger of

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(A) 16

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extinction and whose survival is unlikely

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if the causal factors continue to be operating (B) 32
(D) All of the above
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(C) 64
14. In India Biodiversity Act came into existence
in: a g (D) 128
19. SARS-CoV-2 belongs to the β- CoVs category.
(A) 2000 AD It has round or elliptic and often pleomorphic
(B) 2001 AD form and a diameter of approximately:
(C) 2002 AD (A) 60-140 nm
(D) 2003 AD (B) 90-250 nm
15. The incorrect one from the below mentioned (C) 30-50 nm

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statements is: (D) 50-100 nm
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(A) BOD value of clean water is less than

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20. Which one among following bacteria associated

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5 ppm

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with the mitigation of oil spills, is called as

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(B) Drinking water pH should be between

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the super-bug?

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5.5- 9.5
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(A) E.coli
a (C) Carbon, sulphur and nitrogen oxides are
the most widespread air pollutants (B) Pseudomonas putida
(D) Dissolved oxygen concentration below (C) Salmonella sp.
5 ppm is ideal for the growth of fish (D) Agrobacterium tumefaciens

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21. Cellulose, the structural polysaccharide of plant 26. Enzyme activity is a measure:
is a polymer of:
(A) Catalytic ability
(A) α-D -Glucose
(B) Enzyme specificity
(B) β-D -Glucose
(C) Enzyme sensitivity
(C) α-D -Galactose
(D) Potential energy of enzyme
(D) α-D -Galacturonic acid
27. In which type of inhibition both KM and Vmax
22. Helix disrupting amino acid is: decreases?
(A) Lysine (A) Competitive
(B) Cysteine (B) Non-competitive
(C) Proline (C) Un competitive
(D) Arginine (D) Irreversible
23. The lipid exclusively present in mitochondrial 28. Important amino acid/s at the active site of
membrane is:
hexokinase is/are:
(A) Lecithin
(A) Asp205
(B) Ceramide
(B) Thr168
(C) Cephalin
(C) Lys169
(D) Cardiolipin
(D) All of the above
24. If the percentage of adenine in a DNA sample
29. Which one among the following, is not synthesized
is 20%. What would be the percentage of other
from tyrosine?
bases?
(A) Nor epinephrine
(A) T=30%, G=20%, C=30%
(B) T=40%, G=20%, C=20% (B) Dopamine

(C) T=20%, G=30%, C=30% (C) Melatonin

(D) T=20%, G=20%, C=40% (D) Thyroxine

25. The E.C code word for alcohol dehydrogenase 30. One molecule of urea is formed at the expense
is: of:

(A) EC:1.1.1.1 (A) 1 ATP

(B) EC:1.2.3.4 (B) 2 ATP

(C) EC:1.1.1.27 (C) 3 ATP

(D) EC:2.1.1.1 (D) 4 ATP

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31. Which of the following contributes nitrogen 36. ______ tends to vanish always during meiosis
atoms to both purine and pyrimidine rings? and mitosis.
(A) Aspartate (A) Plastids
(B) Carbamoyl phosphate (B) Plasma membrane
(C) CO2 (C) Nucleolus and nuclear membrane
(D) Glutamine
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(D) All of the above

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32. For the formation of Glycogen ______ acts a 37. The genetic code operates via :

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precursor.

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(A) The protein moiety of DNA
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(A) UDP-glucose

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(B) Malate
(C) Glycerol 3-phosphate (C) The nucleotide sequence of mRNA

(D) Glyceraldehyde- 3-phosphate (D) The base sequence of tRNA

33. Some bacteria have a slimy layer outside cell 38. A level of regulation, demonstrated by the
wall responsible for its virulence called as: termination of transcription if tryptophan is
abundant, by the tryptophan operon in E.coli is
(A) Outer layer
called as:
(B) Capsule
(A) Attenuation
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(C) Plasmid

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(B) Co-repression

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(D) Fimbriae

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(C) Activation

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34. Consider two statements:

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(D) Catabolite repression
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Statement 1 : Sclerenchyma cells do not have
plasmodesmata 39. The characteristic feature/s of homologous
chromosomes is/are:
Statement 2 : The cell walls of some permanent
tissues are heavily lignified. (A) They regularly exchange parts by crossing
Select the correct one from the following options over at meiosis

(A) Both(1) and (2) are correct (B) They physically pair at meiosis
(B) Both(1) and (2) are incorrect (C) They carry alleles for the same gene in

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the same relative position

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(C) Statement(1) is correct and (2) is wrong

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(D) Statement(1) is wrong and (2) is correct
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(D) All of the above

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shift
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35. All are the functions of Golgi bodies except:
(A) Formationgof
gla (B) Secretory protein synthesis a
a (B) Deamination of cytosine to uracil
(C) Post translational modifications (C) Both (A) and (B)
(D) Sorting centre of the cell (D) Neither (A) nor (B)

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41. One among the following chromatographic 46. Which hormone is responsible for conversion
techniques used for determination of molecular of glycogen into glucose?
weight of Enzymes/proteins is:
(A) Insulin
(A) Ion exchange chromatography
(B) Glucagon
(B) Molecular exclusion chromatography
(C) FSH
(C) Affinity Chromatography
(D) None of the above
(D) Paper chromatography
47. Pulmonary fibrosis has most commonly been
42. Which among the following is not the requirement
associated with:
for the formation of polyacrylamide gel for
native PAGE? (A) Asthma
(A) Acrylamide and Bis-acryalmide (B) Cigarette smoking
(B) TEMED (C) Prolonged shallow breathing
(C) SDS (D) Immobility
(D) Ammonium persulphate 48. The most muscular, powerful heart chamber is
43. Who is considered to be the pioneer of the:
Centrifugation? (A) Left atrium
(A) Davis (B) Right atrium
(B) Michael Tswett (C) Left ventricle
(C) Theodore Svedberg
(D) Right ventricle
(D) Lamellae
49. The normal range of values for AST (SGOT)
44. A DNA solution showing absorbance of 0.2 at is about ______ per liter of serum.
260 nm, has a concentration of:
(A) 5 to 40 units
(A) 10 µg/ml
(B) 7 to 56 units
(B) 20 µg/ml
(C) 20 to 200 units
(C) 30 µg/ml
(D) 0.1 to 10 units
(D) 50 µg/ml
50. Which of the following diseases does obesity
45. Gastrin stops its secretions when the stomach
increase the risk of developing?
pH reaches up to:
(A) Type 2 diabetes
(A) 1.5
(B) 4.5 (B) Cardiovascular diseases

(C) 6.8 (C) Cancers

(D) 7.2 (D) All of the above

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51. When a patient tests positive for 6-monoacetyl 56. An antibody having high carbohydrate content
morphine, it indicates: is:

(A) Ingestion of Heroin (A) IgE

(B) Ingestion of Methamphetamine (B) IgM

(C) Ingestion of Cocaine (C) IgD

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(D) IgG

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(D) Ingestion of Marijuana

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57. Recombinant plasmids are added to a bacterial

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52. Which of the following is /are associated with

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culture that has been pretreated with _____
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kidney function tests:

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(A) Creatinine clearance tests
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(A) Iodine
(B) Inulin clearance tests (B) Magnesium
(C) Urea clearance tests (C) Calcium
(D) All of the above (D) Ferric
53. A hapten refers to: 58. Which of the following pair of hormones is
(A) An epitope required for a callus to differentiate?
(A) Ethylene and Auxin
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(B) A paratope

c. o(C) Auxin and Abscisic acid
(B)

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(C) A small chemical grouping which reacts

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with preformed antibodies

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(D) An immunogen
54. Which one of the following mast cell products
is not preformed and therefore has to be newly prize in recognition of discovery of restriction
enzymes and their application to the problems
synthesized?
of molecular genetics:
(A) Histamine
(A) 1973
(B) Prostaglandin D2
(B) 1978

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(C) Heparin

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(C) 1975

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(D) Eosinophil chemotactic factor
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(D) 1983

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55. Protection of body surfaces is not done by:
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(A) Multilayer culture

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(C) Salivary amylase (C) Multiple growth of cells
(D) Skin (D) Sub culturing of primary culture

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ROUGH WORK

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