BIO202 Final Term and Midterm MCQs 2023 by Nasrullah Saeed

Final 15 – 28 Aug 2023

1. Sunflower osazones are Maltose in nature.
2. Pepsin is active at pH 2.
3. The pka value of acetic acid is 4.76.
4. The beets sheets form the core of globular proteins .
5. Leukotrienes are named because they was first identified in white blood cells .
6. About 78% of the amino acid residues in the myoglobin are found in α helices with bends in between.
7. Ethanolamine is a primary alcohol and a primary amine.
8. Galactolipids constitute about 70% to 80 % of plant membrane lipids.
9. mRNA makes 2-5% of cell.
10. RNA referred as_______
11. Galactose joined to glucose by beta(1-4).
12. Keratin is found in hair, nail, hoofs.
13. Guanosine binds to cytosine.
14. The pH is maintained by buffer solution .
15. Reversible inhibitor decrease the value of Vmax.
16. Reversible inhibitors typically bind to enzymes through noncovalent bond.
17. The difference between the energy levels of the ground state and the transition state is the *activation energy.
18. What is wrong about Michaelis Menten equation . Ans. The rate of the reaction is inversely proportional to the enzyme concentration.
19. Saturated fatty acids have double bonds. Ans. Zero
20. The common name of omega-6 is lenoleic acid.
21. pH of pepsin ___
22. Symbol of aspertate ____
23. A--- is a bio catalyst that increase the rate
24. Systemic naming enzymes are divided into ------
25. Moleculer wait of water ----
26. Hemoglobin is the red pigment containg protein components and derivative ______
27. The iron of heme group is _____
28. Omega 6 other name …. Linoleic acid
29. Triacylglycerol are soluble in……ether, benzene,
30. VLDLs composed predominantly of TAGs
31. The mammalian ribosomes contains two major_____ nucleoproteinssubunits………(Large 60S smaller 40S)
32. These enzymes catalyze condensation reactions joining
33. Two molecules by forming C-O, C-S, C-N and C-C bonds……….. ligases
34. Measure of randomness of system is.... Entropy
35. Imminuglubin IgG consist of
36. Optimum pH of pepsin..
37. Triple bond has...
38. Example of glycerol
39. Waxes show _______ test. nagative
40. Example of purines... Guanine.
41. Constituent of chondrotin….– D -mannosamine.
42. Titration curve of glycerin known as ________________
43. What is rencidity
44. non_competitive inhibitors in terms Vmax.
45. Bile is found ____________
46. Reversible inhibitors bind to enzymes through……
47. Disease occur by misfolding of protein
48. W-6 is common name is__________ linoleic acid
49. tRNA concentration in cell__________ 20%
50. Globosides are highly abundant in __________ Rbcs
51. __________ Is a common secondary structure of protein... Alpha helix
52. table sugar is___________
53. which one is present only in RNA _____________ Uracil.
54. waxes are insoluble in_____________ water .
55. Which bases have triple bond ___________________ guanine and cytosine.

Q56. Instead of thymine which is present in RNA__________?

Uracil.

Q57. The deleterious effect of trans fats occur at intake _____ ?

2-7g/per day

58. Leukotrienes they were first discovered in_______ White blood cell
59. In protein there is__________ peptide bond
60. Atomic number of oxygen is _______ '8"
61. Chargaff rule ______________ A+G and G+C
62. Phosphotidal choline is formed by __________ "sphingosine and choline"
63. Histidine is a generally considered to be a ___________ amino acid Polar
64. Lysine is _______________ in nature hydrophillic
65. Chlosterol is produced in _______________ "liver"
66. At the __________ of any titration, a point is reached where the pH is equal to the pKa of the protonated group being titrated midpoint
67. In water ________________ is significant character hydrogen bonding"
68. In contrast to keratin, myoglobin, whose structure is also highly α-helical, is a__________ , flexible molecule. globular
69. The two amino acids having R groups with a net negative charge at pH 7.0 are aspartate and_______________ glutamate
70. Seminal fluid is rich in __________ Fructose

Q71. short wavelength of DNA?

260 nm

Q72. which is the structural protein in the following?

All of these (Collagen, Elastin and Keratin)

Q73. leukotriens are present in ?

leukocytes (white blood cells)

Q74. value of palmitic acid?

Q75. value of glycine?

Q76. glutamate has a pI value of?

3.22,

Q77. which is formed when carbohydrates and proteins are together?

78. which is the table sugar in following?_ Sucrose
79. Which is aromatic Amino acid

All of these are aromatic amino acids

(Phenylalanine. Tyrosine And Tryptophan)

Q80. Which are Halogens of the following ?

All of these are Halogens

(chlorine, bromine and iodine)

81. Which Amino acid negatively charged at physiological ph.

free D- , serine and D-aspartate in brain tissue

82. Purines pair_____________
83. Types of enzymes _______________
84. 6)first leukotrienes discovered in_________

leukocytes (white blood cells)

85. Which is aromatic Amino acid

All of these are aromatic amino acids

(Phenylalanine. Tyrosine And Tryptophan)

Q86. Which are Halogens of the following ?

All of these are Halogens

(chlorine, bromine and iodine)

87. Which Amino acid negatively charged at physiological ph.

free D- , serine and D-aspartate in brain tissue

88. Purines pair btna tha..
89. Types of enzymes _______________
90. first leukotrienes discovered in_________